{"title":"Trailer Leaf Springs","description":"\u003cdiv class=\"aaa-anatomy-block\" style=\"background:#f7f7f5;border:1px solid #e1e1de;border-radius:8px;padding:20px;margin:0 0 28px 0;\"\u003e\n  \u003cdiv style=\"display:flex;flex-wrap:wrap;gap:24px;align-items:flex-start;\"\u003e\n    \u003cdiv style=\"flex:1 1 380px;min-width:260px;\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0733\/9144\/0181\/t\/20\/assets\/trailer-axle-anatomy-diagram.jpg?v=1776945405\" alt=\"Trailer axle diagram showing leaf spring (#1) mounted above the axle tube\" width=\"1350\" height=\"1031\" style=\"width:100%;height:auto;display:block;border-radius:4px;background:#fff;\" loading=\"lazy\" decoding=\"async\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"flex:1 1 300px;min-width:250px;\"\u003e\n      \u003ch2 style=\"margin:0 0 10px 0;font-size:22px;line-height:1.2;\"\u003e🪨 Trailer Leaf Springs — Replace in Pairs\u003c\/h2\u003e\n      \u003cp style=\"margin:0 0 14px 0;font-size:15px;line-height:1.55;color:#2a2a2a;\"\u003e\n        \u003cstrong\u003eNever replace just one leaf spring.\u003c\/strong\u003e A new spring is taller than a worn one — one-side replacement causes lean. Replace both springs on an axle (or all four on a tandem) at the same time.\n      \u003c\/p\u003e\n      \u003cp style=\"margin:0 0 14px 0;font-size:14px;line-height:1.5;color:#555;\"\u003e\n        Two common styles:\n      \u003c\/p\u003e\n      \u003cul style=\"margin:0 0 14px 0;padding-left:18px;font-size:14px;line-height:1.6;\"\u003e\n        \u003cli\u003e\n\u003cstrong\u003eDouble-eye\u003c\/strong\u003e — closed loop on both ends, rides between front and rear hangers\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSlipper\u003c\/strong\u003e — one closed eye, one open slider, common on tandem axles\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp style=\"margin:16px 0 0 0;\"\u003e\n        \u003ca href=\"\/pages\/trailer-axle-anatomy\" style=\"display:inline-block;background:#c8102e;color:#fff;padding:10px 18px;border-radius:4px;text-decoration:none;font-weight:600;font-size:14px;\"\u003e📖 See Leaf Springs in Axle Context →\u003c\/a\u003e\n      \u003c\/p\u003e\n      \u003cp style=\"margin:10px 0 0 0;font-size:13px;color:#666;\"\u003e\n        Replacing springs? Order matching U-bolts and tie plates at the same time. Call\/text \u003ca href=\"tel:5172251991\" style=\"color:#c8102e;\"\u003e517-225-1991\u003c\/a\u003e for a full suspension kit.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n","products":[{"product_id":"25-1-4-double-eye-spring-3000lb-4-leaf","title":"Trailer Leaf Spring 4-Leaf 3000 lb – 25-1\/8\" Double Eye | Fits 6,000 lb Axles | UNA-221 DE-7226","description":"\u003cp\u003e🔩 \u003cstrong\u003e25-1\/8\" Double Eye Trailer Leaf Spring – 4 Leaf – 3,000 lb Capacity | Fits 6,000 lb Axles | UNA-221 \/ DE-7226\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eHeavy-duty 4-leaf double-eye spring rated 3,000 lb per spring for 6,000 lb single axles. Note: Length is 25-1\/8\" (25.13\") eye-to-eye — do not confuse with the 5-leaf SW5 (UNA-111) which shares the same capacity but different leaf count and spring rate. Sold individually.\u003c\/p\u003e\n\u003cp\u003e⚙️ \u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 3,000 lbs per spring (fits 6,000 lb axles)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Eye-to-Eye (free):\u003c\/strong\u003e 25-1\/8\" (25.13\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeaf Width:\u003c\/strong\u003e 1-3\/4\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBushing I.D.:\u003c\/strong\u003e 9\/16\" — nylon bushings pre-installed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Leaves:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring Type:\u003c\/strong\u003e Double Eye\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e🔁 \u003cstrong\u003eCross-Reference Part Numbers\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUNA-221 | DE-7226 | 072-026-00 | 72-26 | 93115 | ML-4 | LIB-403-DE | UNA-117 | US-1079\u003c\/p\u003e\n\u003cp\u003e⚠️ Sold individually. Replace springs in pairs. Confirm axle rating before ordering.\u003c\/p\u003e\u003cp\u003e📞 \u003cstrong\u003eNeed help choosing the right spring? Call or text AAA Trailer: \u003ca href=\"tel:5172251991\"\u003e517-225-1991\u003c\/a\u003e\u003c\/strong\u003e | Howell, MI | \u003ca href=\"https:\/\/aaatrailer.com\"\u003eAAATrailer.com\u003c\/a\u003e — Same-day shipping available on in-stock orders.\u003c\/p\u003e","brand":"Detroit Hitch","offers":[{"title":"Default Title","offer_id":50580970045749,"sku":"850-0221","price":82.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/9144\/0181\/files\/2525-double-eye-leaf-spring-3000lb.jpg?v=1775952086"},{"product_id":"26-1-2-slipper-spring-with-hook-3500lb-capacity-5-leaf","title":"26.50\" Slipper Spring · Hook End · 3500 LB Capacity · 5-Leaf · 2\" Wide","description":"\u003cp\u003e\u003cstrong\u003e26.50\" Slipper Spring\u003c\/strong\u003e — 5-leaf, 3500 LB capacity per spring, 2\" wide, with hook end configuration.\u003c\/p\u003e\n\n\u003cp\u003eSlipper springs are the workhorse suspension on most modern utility, cargo, and equipment trailers. Unlike double-eye leaf springs that bolt through both ends, a slipper spring is pinned at the front and rides freely against the rear hanger, letting the suspension flex without binding under uneven loads.\u003c\/p\u003e\n\n\u003cp\u003eThe hook-end design captures the rear shackle plate inside the curled tail of the spring, eliminating the need for a rear shackle bolt. Standard on tandem-axle slipper-suspension trailers from 2,000 lb axles up to heavy 7,000 lb tandem and triple configurations.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 26.50\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 2\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of leaves:\u003c\/strong\u003e 5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 3500 LB (per spring)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd style:\u003c\/strong\u003e Hook End\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Hot-rolled, heat-treated alloy steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Black powder-coated for corrosion resistance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eReplacement \/ cross-references\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ccode\u003eUNA-232\u003c\/code\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ccode\u003eSH-7232\u003c\/code\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplication notes\u003c\/h3\u003e\n\u003cp\u003eAlways replace slipper springs in matched pairs across the same axle. Capacity ratings are per individual spring — for total axle capacity multiply by 2 (single axle) or 4 (tandem axle). Slipper-suspension trailers also require matched front hangers, rear hangers, equalizers, and U-bolt tie plates of the correct width — verify these are in good condition during installation. Torque U-bolts to manufacturer spec and re-torque after the first 50 miles of loaded operation.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eSold individually unless specified otherwise. Bushings, hangers, U-bolts, and tie plates sold separately.\u003c\/em\u003e\u003c\/p\u003e","brand":"Detroit Hitch","offers":[{"title":"Default Title","offer_id":50580971618613,"sku":"850-0232","price":79.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/9144\/0181\/files\/una-232-slipper-spring-3500lb-26-5-inch.jpg?v=1776981011"},{"product_id":"27-double-eye-leaf-spring-4-leaves-1-3-4-wide-2100-lbs-capacity0","title":"Trailer Leaf Spring 4-Leaf 2100 lb – 27\" Double Eye | UNA-210 DE-33613","description":"\u003cp\u003e🔩 \u003cstrong\u003e27\" Double Eye Trailer Leaf Spring – 4 Leaf – 2,100 lb Capacity | UNA-210 \/ DE-33613\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e4-leaf double-eye spring rated 2,100 lb per spring. Used on 4,200 lb single axles and various tandem configurations. Sold individually.\u003c\/p\u003e\n\u003cp\u003e⚙️ \u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 2,100 lbs per spring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Eye-to-Eye (free):\u003c\/strong\u003e 27\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeaf Width:\u003c\/strong\u003e 1-3\/4\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBushing I.D.:\u003c\/strong\u003e 9\/16\" — nylon bushings pre-installed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Leaves:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring Type:\u003c\/strong\u003e Double Eye\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e🔁 \u003cstrong\u003eCross-Reference Part Numbers\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDE-33613 | UNA-210 | U210\u003c\/p\u003e\n\u003cp\u003e⚠️ Sold individually. Replace springs in pairs. Confirm axle rating before ordering.\u003c\/p\u003e\u003cp\u003e📞 \u003cstrong\u003eNeed help choosing the right spring? Call or text AAA Trailer: \u003ca href=\"tel:5172251991\"\u003e517-225-1991\u003c\/a\u003e\u003c\/strong\u003e | Howell, MI | \u003ca href=\"https:\/\/aaatrailer.com\"\u003eAAATrailer.com\u003c\/a\u003e — Same-day shipping available on in-stock orders.\u003c\/p\u003e","brand":"Detroit Hitch","offers":[{"title":"Default Title","offer_id":50580972142901,"sku":"850-0210","price":72.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/9144\/0181\/files\/27-inch-double-eye-leaf-spring-2100-lbs-2.jpg?v=1777542690"},{"product_id":"27-double-eye-leaf-spring-6-leaf-3-000-lb-una-142","title":"Trailer Leaf Spring 6-Leaf 3000 lb – 27\" Double Eye | DE-33617 DE-3361 U142","description":"\u003cp\u003e🔩 \u003cstrong\u003e27\" Double Eye Trailer Leaf Spring – 6 Leaf – 3,000 lb Capacity | DE-33617 \/ DE-3361\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eHeavy-duty 6-leaf double-eye spring rated 3,000 lb per spring for 6,000 lb axles at 27\" length. Sold individually.\u003c\/p\u003e\n\u003cp\u003e⚙️ \u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 3,000 lbs per spring (fits 6,000 lb axles)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Eye-to-Eye (free):\u003c\/strong\u003e 27\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeaf Width:\u003c\/strong\u003e 1-3\/4\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBushing I.D.:\u003c\/strong\u003e 9\/16\" — nylon bushings pre-installed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Leaves:\u003c\/strong\u003e 6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring Type:\u003c\/strong\u003e Double Eye\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e🔁 \u003cstrong\u003eCross-Reference Part Numbers\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDE-33617 | DE-3361 | U142 | TruRyde DE-3361\u003c\/p\u003e\n\u003cp\u003e⚠️ Sold individually. Replace springs in pairs. Confirm axle rating before ordering.\u003c\/p\u003e\u003cp\u003e📞 \u003cstrong\u003eNeed help choosing the right spring? Call or text AAA Trailer: \u003ca href=\"tel:5172251991\"\u003e517-225-1991\u003c\/a\u003e\u003c\/strong\u003e | Howell, MI | \u003ca href=\"https:\/\/aaatrailer.com\"\u003eAAATrailer.com\u003c\/a\u003e — Same-day shipping available on in-stock orders.\u003c\/p\u003e","brand":"Detroit Hitch","offers":[{"title":"Default Title","offer_id":50580972241205,"sku":"850-0142","price":89.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/9144\/0181\/files\/truryde-de33617-27in-6-leaf-double-eye-spring.jpg?v=1775483586"},{"product_id":"29-5-slipper-spring-with-hook-end-4000-lb-capacity-each-2-wide","title":"29.5\" Slipper Spring with Hook End 4300 LB Capacity Each 2\" Wide","description":"\u003ch2\u003e🔩 29.5\" Slipper Spring — 2\" Wide, 6-Leaf, 4300 lb Hook End\u003c\/h2\u003e\n\u003cp\u003eThis is a 2\"-wide, 6-leaf slipper spring rated at 4,300 lb capacity per spring, with a hook end configuration. Slipper springs sold individually. MFG# UNA-161 \/ SH-E5115. For use on tandem axle trailer suspensions requiring a hook-end spring in this size and capacity range.\u003c\/p\u003e\n\u003ch3\u003e⚙️ Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWidth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e29.50\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLeaves\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCapacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4,300 lb (per spring)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnd Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHook end\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSold As\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEach\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003e📌 Other 2\" Hook-End Slipper Springs\u003c\/h3\u003e\n\u003cp\u003e✔ 26.50\" \/ 4 leaf \/ 2500 lb: (SH-7231)\u003cbr\u003e✔ 26.50\" \/ 5 leaf \/ 3500 lb: (SH-7232)\u003cbr\u003e✔ 26.50\" \/ 7 leaf \/ 4300 LB: (SH-7233)\u003cbr\u003e✔ 29.50\" \/ 6 leaf \/ 4300 lb (this): (SH-E5115)\u003c\/p\u003e\u003chr\u003e\u003cp\u003e📞 \u003cstrong\u003e(517) 225-1991\u003c\/strong\u003e  🌐 AAATrailer.com  |  \u003cstrong\u003e4675 E Grand River Ave, Howell, MI 48843\u003c\/strong\u003e\u003cbr\u003eTrusted trailer parts dealer for 20+ years. Thousands of parts in stock, ships same day from Michigan.\u003c\/p\u003e","brand":"Detroit Hitch","offers":[{"title":"Default Title","offer_id":50580972962101,"sku":"850-0161","price":92.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/9144\/0181\/files\/295-slipper-spring-hook-end-4000-lb.png?v=1775952135"},{"product_id":"6-leaf-double-eye-spring-for-7-000-lb-trailer-axles-25-25-long","title":"Trailer Leaf Spring 6-Leaf 3500 lb – 25-1\/4\" Double Eye | Fits 7,000 lb Axles | SW6 UNA-223","description":"\u003cp\u003e🔩 \u003cstrong\u003e25-1\/4\" Double Eye Trailer Leaf Spring – 6 Leaf – 3,500 lb Capacity | Fits 7,000 lb Axles | SW6 \/ UNA-223\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe factory standard 6-leaf double-eye spring for 7,000 lb trailer axles. Sold individually — order two per single axle, four for tandem.\u003c\/p\u003e\n\u003cp\u003e⚙️ \u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 3,500 lbs per spring (fits 7,000 lb axles)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Eye-to-Eye (free):\u003c\/strong\u003e 25-1\/4\" (25.25\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree Arch Height:\u003c\/strong\u003e 3\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeaf Width:\u003c\/strong\u003e 1-3\/4\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBushing I.D.:\u003c\/strong\u003e 9\/16\" — nylon bushings pre-installed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Leaves:\u003c\/strong\u003e 6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring Type:\u003c\/strong\u003e Double Eye\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e🔁 \u003cstrong\u003eCross-Reference Part Numbers\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSW6 | DE-SW6 | UNA-223 | PR6 | PR-6 | 9150021 | LIB-601-DE | 20029 | 93160 | 4362-33\u003c\/p\u003e\n\u003cp\u003e✅ \u003cstrong\u003eFits These Trailer Types\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHeavy utility trailers with 7,000 lb axles\u003c\/li\u003e\n\u003cli\u003eGooseneck trailers\u003c\/li\u003e\n\u003cli\u003eEquipment \u0026amp; car haulers\u003c\/li\u003e\n\u003cli\u003eDump trailers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e⚠️ Sold individually. Replace springs in pairs. Confirm axle rating before ordering.\u003c\/p\u003e\u003cp\u003e📞 \u003cstrong\u003eNeed help choosing the right spring? Call or text AAA Trailer: \u003ca href=\"tel:5172251991\"\u003e517-225-1991\u003c\/a\u003e\u003c\/strong\u003e | Howell, MI | \u003ca href=\"https:\/\/aaatrailer.com\"\u003eAAATrailer.com\u003c\/a\u003e — Same-day shipping available on in-stock orders.\u003c\/p\u003e","brand":"Detroit Hitch","offers":[{"title":"Default Title","offer_id":50580980891957,"sku":"850-0223","price":89.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/9144\/0181\/files\/6-leaf-double-eye-spring-for-7-000-lb-trailer-axle-upscaled.jpg?v=1776615035"},{"product_id":"leaf-spring-double-eye-1-3-4-4-leaf-26-00-2000lb","title":"Trailer Leaf Spring 4-Leaf 2000 lb – 26\" Double Eye | Fits 4,000 lb Axles | DE-AWS4 UNA-051","description":"\u003cp\u003e🔩 \u003cstrong\u003e26\" Double Eye Trailer Leaf Spring – 4 Leaf – 2,000 lb Capacity | Fits 4,000 lb Axles | DE-AWS4 \/ UNA-051\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e4-leaf double-eye spring rated 2,000 lb per spring for 4,000 lb trailer axles. Sold individually — order two per axle.\u003c\/p\u003e\n\u003cp\u003e⚙️ \u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 2,000 lbs per spring (fits 4,000 lb axles)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Eye-to-Eye (free):\u003c\/strong\u003e 26\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeaf Width:\u003c\/strong\u003e 1-3\/4\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBushing I.D.:\u003c\/strong\u003e 9\/16\" — nylon bushings pre-installed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Leaves:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring Type:\u003c\/strong\u003e Double Eye\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e🔁 \u003cstrong\u003eCross-Reference Part Numbers\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDE-AWS4 | AWS4 | UNA-051 | SW4 | 93165\u003c\/p\u003e\n\u003cp\u003e⚠️ Sold individually. Replace springs in pairs. Confirm axle rating before ordering.\u003c\/p\u003e\u003cp\u003e📞 \u003cstrong\u003eNeed help choosing the right spring? Call or text AAA Trailer: \u003ca href=\"tel:5172251991\"\u003e517-225-1991\u003c\/a\u003e\u003c\/strong\u003e | Howell, MI | \u003ca href=\"https:\/\/aaatrailer.com\"\u003eAAATrailer.com\u003c\/a\u003e — Same-day shipping available on in-stock orders.\u003c\/p\u003e","brand":"Detroit Hitch","offers":[{"title":"Default Title","offer_id":50581021032757,"sku":"850-0051","price":64.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/9144\/0181\/files\/heavy-duty-2000lb-leaf.webp?v=1776166777"},{"product_id":"spring-double-eye-6-leaf-24-88-long-3500-capacity","title":"Trailer Leaf Spring 6-Leaf 3500 lb – 25\" Double Eye | UNA-222 | Fits 7,000 lb Axles","description":"\u003cp\u003e🔩 \u003cstrong\u003e25\" Double Eye Trailer Leaf Spring – 6 Leaf – 3,500 lb Capacity | UNA-222\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eHeavy-duty 6-leaf double-eye spring rated 3,500 lb per spring. Sold individually.\u003c\/p\u003e\n\u003cp\u003e⚙️ \u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 3,500 lbs per spring (fits 7,000 lb axles)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Eye-to-Eye (free):\u003c\/strong\u003e ~25\" (24.88\"–25\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeaf Width:\u003c\/strong\u003e 1-3\/4\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBushing I.D.:\u003c\/strong\u003e 9\/16\" — nylon bushings pre-installed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Leaves:\u003c\/strong\u003e 6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring Type:\u003c\/strong\u003e Double Eye\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e🔁 \u003cstrong\u003eCross-Reference Part Numbers\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUNA-222 | DE-7227\u003c\/p\u003e\n\u003cp\u003e⚠️ Note: This spring measures approximately 24.88\"–25\" eye-to-eye — slightly shorter than the standard SW6\/UNA-223 (25.25\"). Verify your measurement before ordering. Sold individually. Replace springs in pairs.\u003c\/p\u003e\u003cp\u003e📞 \u003cstrong\u003eNeed help choosing the right spring? Call or text AAA Trailer: \u003ca href=\"tel:5172251991\"\u003e517-225-1991\u003c\/a\u003e\u003c\/strong\u003e | Howell, MI | \u003ca href=\"https:\/\/aaatrailer.com\"\u003eAAATrailer.com\u003c\/a\u003e — Same-day shipping available on in-stock orders.\u003c\/p\u003e","brand":"Detroit Hitch","offers":[{"title":"Default Title","offer_id":50581063598389,"sku":"850-0222","price":89.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/9144\/0181\/files\/spring-double-eye-6-leaf-24-88-long-3500-capacity-upscaled.jpg?v=1776615040"},{"product_id":"una-212-trailer-leaf-spring-1750lb-25-1-4","title":"Trailer Leaf Spring 4-Leaf 1750 lb – 25-1\/4\" Double Eye | Fits 3,500 lb Axles | SW4B UNA-212","description":"\u003cp\u003e🔩 \u003cstrong\u003e25-1\/4\" Double Eye Trailer Leaf Spring – 4 Leaf – 1,750 lb Capacity | Fits 3,500 lb Axles | SW4B \/ UNA-212\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe most widely used trailer leaf spring in North America. This 4-leaf double-eye spring is the factory standard on virtually every 3,500 lb utility, boat, and cargo trailer axle. Sold individually — order two per single axle, four for tandem.\u003c\/p\u003e\n\u003cp\u003e⚙️ \u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 1,750 lbs per spring (fits 3,500 lb axles)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Eye-to-Eye (free):\u003c\/strong\u003e 25-1\/4\" (25.25\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree Arch Height:\u003c\/strong\u003e 3\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeaf Width:\u003c\/strong\u003e 1-3\/4\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBushing I.D.:\u003c\/strong\u003e 9\/16\" — nylon bushings pre-installed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Leaves:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring Type:\u003c\/strong\u003e Double Eye\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e🔁 \u003cstrong\u003eCross-Reference Part Numbers\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSW4B | DE-SW4B | UNA-212 | UNA-108 | UNA-157 | DE-7242 | USW4B | PR4B | PR-4B | 072-042-00 | 72-42 | 9150014 | 93184 | 93168 | 124903 | LIB-401-DE | 20015 | 4342-17\u003c\/p\u003e\n\u003cp\u003e✅ \u003cstrong\u003eFits These Trailer Types\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUtility trailers with 3,500 lb axles\u003c\/li\u003e\n\u003cli\u003eBoat trailers\u003c\/li\u003e\n\u003cli\u003eCargo\/enclosed trailers\u003c\/li\u003e\n\u003cli\u003eLandscape \u0026amp; dump trailers\u003c\/li\u003e\n\u003cli\u003eHorse \u0026amp; livestock trailers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e⚠️ Sold individually. Replace springs in pairs. Confirm axle rating before ordering.\u003c\/p\u003e\u003cp\u003e📞 \u003cstrong\u003eNeed help choosing the right spring? Call or text AAA Trailer: \u003ca href=\"tel:5172251991\"\u003e517-225-1991\u003c\/a\u003e\u003c\/strong\u003e | Howell, MI | \u003ca href=\"https:\/\/aaatrailer.com\"\u003eAAATrailer.com\u003c\/a\u003e — Same-day shipping available on in-stock orders.\u003c\/p\u003e","brand":"Detroit Hitch","offers":[{"title":"Default Title","offer_id":50581076705589,"sku":"850-0212","price":57.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/9144\/0181\/files\/una-212-leaf-spring-25.jpg?v=1777728441"},{"product_id":"2-x-26-98-slipper-spring-5-leaf-3400-pounds","title":"26.98\" Slipper Spring · Hook End · 3400 LB Capacity · 5-Leaf · 2\" Wide","description":"\u003cp\u003e\u003cstrong\u003e26.98\" Slipper Spring\u003c\/strong\u003e — 5-leaf, 3400 LB capacity per spring, 2\" wide, with hook end configuration.\u003c\/p\u003e\n\n\u003cp\u003eSlipper springs are the workhorse suspension on most modern utility, cargo, and equipment trailers. Unlike double-eye leaf springs that bolt through both ends, a slipper spring is pinned at the front and rides freely against the rear hanger, letting the suspension flex without binding under uneven loads.\u003c\/p\u003e\n\n\u003cp\u003eThe hook-end design captures the rear shackle plate inside the curled tail of the spring, eliminating the need for a rear shackle bolt. Standard on tandem-axle slipper-suspension trailers from 2,000 lb axles up to heavy 7,000 lb tandem and triple configurations.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 26.98\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 2\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of leaves:\u003c\/strong\u003e 5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 3400 LB (per spring)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd style:\u003c\/strong\u003e Hook End\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Hot-rolled, heat-treated alloy steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Black powder-coated for corrosion resistance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eReplacement \/ cross-references\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ccode\u003eUNA-160\u003c\/code\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ccode\u003eSH-E5226\u003c\/code\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplication notes\u003c\/h3\u003e\n\u003cp\u003eAlways replace slipper springs in matched pairs across the same axle. Capacity ratings are per individual spring — for total axle capacity multiply by 2 (single axle) or 4 (tandem axle). Slipper-suspension trailers also require matched front hangers, rear hangers, equalizers, and U-bolt tie plates of the correct width — verify these are in good condition during installation. Torque U-bolts to manufacturer spec and re-torque after the first 50 miles of loaded operation.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eSold individually unless specified otherwise. Bushings, hangers, U-bolts, and tie plates sold separately.\u003c\/em\u003e\u003c\/p\u003e","brand":"Detroit Hitch","offers":[{"title":"Default Title","offer_id":50828107907381,"sku":"850-0160","price":81.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/9144\/0181\/files\/slipper-spring-leaf-3400.png?v=1776168385"},{"product_id":"double-eye-spring-20-50-4-leaf","title":"Trailer Leaf Spring 4-Leaf 1400 lb – 20-1\/2\" Double Eye | Fits 2,800 lb Axles | DE-7213 UNA-167","description":"\u003cp\u003e🔩 \u003cstrong\u003e20-1\/2\" Double Eye Trailer Leaf Spring – 4 Leaf – 1,400 lb Capacity | DE-7213 \/ UNA-167\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCompact 4-leaf double-eye spring for smaller 2,800 lb axles. Common on lighter boat trailers and small utility trailers. Sold individually.\u003c\/p\u003e\n\u003cp\u003e⚙️ \u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 1,400 lbs per spring (fits 2,800 lb axles)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Eye-to-Eye (free):\u003c\/strong\u003e 20-1\/2\" (20.5\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeaf Width:\u003c\/strong\u003e 1-3\/4\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBushing I.D.:\u003c\/strong\u003e 9\/16\" — nylon bushings pre-installed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Leaves:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring Type:\u003c\/strong\u003e Double Eye\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e🔁 \u003cstrong\u003eCross-Reference Part Numbers\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDE-7213 | UNA-167\u003c\/p\u003e\n\u003cp\u003e⚠️ Sold individually. Replace springs in pairs. Confirm axle rating before ordering.\u003c\/p\u003e\u003cp\u003e📞 \u003cstrong\u003eNeed help choosing the right spring? Call or text AAA Trailer: \u003ca href=\"tel:5172251991\"\u003e517-225-1991\u003c\/a\u003e\u003c\/strong\u003e | Howell, MI | \u003ca href=\"https:\/\/aaatrailer.com\"\u003eAAATrailer.com\u003c\/a\u003e — Same-day shipping available on in-stock orders.\u003c\/p\u003e","brand":"Detroit Hitch","offers":[{"title":"Default Title","offer_id":51306345824565,"sku":"850-0167","price":55.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/9144\/0181\/files\/double-eye-spring-20-50-4-leaf-upscaled.jpg?v=1776615042"},{"product_id":"trailer-leaf-spring-double-eye-6-leaves-1-75-spring-1-750lbs-capacity-25-25-copy","title":"Trailer Leaf Spring 5-Leaf 3000 lb – 25-1\/4\" Double Eye | Fits 5,200–6,000 lb Axles | SW5 UNA-111","description":"\u003cp\u003e🔩 \u003cstrong\u003e25-1\/4\" Double Eye Trailer Leaf Spring – 5 Leaf – 3,000 lb Capacity | Fits 5,200–6,000 lb Axles | SW5 \/ UNA-111\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe standard 5-leaf double-eye spring for 5,200 to 6,000 lb trailer axles. Used by 90% of trailer manufacturers on 5K–6K axles. Sold individually — order two per single axle, four for tandem.\u003c\/p\u003e\n\u003cp\u003e⚙️ \u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 3,000 lbs per spring (fits 5,200–6,000 lb axles)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Eye-to-Eye (free):\u003c\/strong\u003e 25-1\/4\" (25.25\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree Arch Height:\u003c\/strong\u003e 3\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeaf Width:\u003c\/strong\u003e 1-3\/4\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBushing I.D.:\u003c\/strong\u003e 9\/16\" — nylon bushings pre-installed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Leaves:\u003c\/strong\u003e 5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring Type:\u003c\/strong\u003e Double Eye\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e🔁 \u003cstrong\u003eCross-Reference Part Numbers\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSW5 | DE-SW5 | UNA-111 | PR5 | PR-5 | 072-073-00 | 9150018 | 93163 | 20025 | LIB-502-DE | 174-111 | 1764 | 33600 | SP-111275 | SPG3KDBI5L25.25L | TS534-5\u003c\/p\u003e\n\u003cp\u003e✅ \u003cstrong\u003eFits These Trailer Types\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHeavy utility trailers with 5,200–6,000 lb axles\u003c\/li\u003e\n\u003cli\u003eDump trailers\u003c\/li\u003e\n\u003cli\u003eEquipment trailers\u003c\/li\u003e\n\u003cli\u003eCar haulers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e⚠️ Sold individually. Replace springs in pairs. Confirm axle rating before ordering.\u003c\/p\u003e\u003cp\u003e📞 \u003cstrong\u003eNeed help choosing the right spring? Call or text AAA Trailer: \u003ca href=\"tel:5172251991\"\u003e517-225-1991\u003c\/a\u003e\u003c\/strong\u003e | Howell, MI | \u003ca href=\"https:\/\/aaatrailer.com\"\u003eAAATrailer.com\u003c\/a\u003e — Same-day shipping available on in-stock orders.\u003c\/p\u003e","brand":"Detroit Hitch","offers":[{"title":"Default Title","offer_id":51425305526581,"sku":"850-0111","price":72.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/9144\/0181\/files\/heavy-duty-2525-double-eye-trailer-leaf.jpg?v=1775960116"},{"product_id":"trailer-leaf-spring-4-leaf-2500-lb-25-1-4-double-eye-fits-5-000-lb-axles-una-218-de-7225-sw4","title":"Trailer Leaf Spring 4-Leaf 2500 lb – 25-1\/4\" Double Eye | Fits 5,000 lb Axles | UNA-218 DE-7225 SW4","description":"\u003cp\u003e🔩 \u003cstrong\u003e25-1\/4\" Double Eye Trailer Leaf Spring – 4 Leaf – 2,500 lb Capacity | Fits 5,000 lb Axles | UNA-218 \/ DE-7225\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe mid-capacity workhorse of the trailer spring lineup. This 4-leaf double-eye spring bridges the gap between the 1,750 lb SW4B and the 3,000 lb SW5 — covering 5,000 lb axles used on heavier single-axle utility trailers, landscape trailers, car haulers, and tandem boat trailers. Same 25-1\/4\" length and 1-3\/4\" width as the rest of the standard series, with nylon bushings pre-installed in both eyes. Sold individually — order two per axle.\u003c\/p\u003e\n\n\u003cp\u003e⚙️ \u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 2,500 lbs per spring (fits 5,000 lb axles)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Eye-to-Eye (free):\u003c\/strong\u003e 25-1\/4\" (25.25\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree Arch Height:\u003c\/strong\u003e 3\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeaf Width:\u003c\/strong\u003e 1-3\/4\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeaf Thickness:\u003c\/strong\u003e 3\/8\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Leaves:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring Type:\u003c\/strong\u003e Double Eye\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBushing I.D.:\u003c\/strong\u003e 9\/16\" — nylon bushings pre-installed in both eyes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEye I.D. (without bushing):\u003c\/strong\u003e 11\/16\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShackle Bolt Size:\u003c\/strong\u003e 9\/16\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e Approx. 14 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e🔁 \u003cstrong\u003eCross-Reference Part Numbers\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUNA-218 | DE-7225 | SW-4 | SW4 | PR-4 | PR4 | US-1065 | US-1067 | UNA-110 | 1763 | 93181 | 93103 | LD25254ML | 072-025-00 | 72-025-00 | 72-25 | 9150016 | 124886 | 27-202 | UDB25254XHD\u003c\/p\u003e\n\n\u003cp\u003e✅ \u003cstrong\u003eFits These Trailer Types\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSingle-axle utility trailers rated at 5,000 lb GVWR\u003c\/li\u003e\n\u003cli\u003eLandscape and lawn trailers with 5,000 lb axles\u003c\/li\u003e\n\u003cli\u003eCar hauler and equipment trailers\u003c\/li\u003e\n\u003cli\u003eTandem boat trailers (rear axle on some configurations)\u003c\/li\u003e\n\u003cli\u003eHeavy-duty cargo and enclosed trailers with 5,000 lb axles\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e⚠️ \u003cstrong\u003eSold individually — 2 springs required per axle. Verify your axle's spring seat capacity before ordering. This spring fits 5,000 lb axles. For 3,500 lb axles use SW4B (UNA-212). For 6,000 lb axles use SW5 (UNA-111).\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e📞 \u003cstrong\u003eQuestions? Call or text AAA Trailer: \u003ca href=\"tel:5172251991\"\u003e517-225-1991\u003c\/a\u003e\u003c\/strong\u003e | \u003ca href=\"https:\/\/aaatrailer.com\"\u003eAAATrailer.com\u003c\/a\u003e — Same-day shipping on in-stock orders from Howell, MI.\u003c\/p\u003e","brand":"Detroit Hitch","offers":[{"title":"Default Title","offer_id":52820869972277,"sku":"850-0218","price":59.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/9144\/0181\/files\/UNA-218_DE-7225_leaf_spring_product_1000.jpg?v=1778411840"},{"product_id":"dexter-072-042-00-leaf-spring-4-leaf-1750-lb","title":"Dexter 072-042-00 Double Eye Leaf Spring — 4-Leaf, 1,750 lb, 25-1\/4\" — 3,500 lb Axle","description":"\u003cdiv dir=\"ltr\"\u003e\n\u003ch2\u003e🔩 Dexter OEM Double Eye Leaf Spring | 4-Leaf | 1,750 lb Capacity\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDexter part number 072-042-00\u003c\/strong\u003e is the factory OEM replacement leaf spring for Dexter 3,500 lb single-axle trailers. If your trailer is sagging, riding rough, or has a broken leaf, this is the direct-fit factory fix — not an aftermarket substitute.\u003c\/p\u003e\n\n\u003chr\u003e\n\u003ch2\u003e📐 FULL SPECIFICATIONS\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003eStyle:\u003c\/strong\u003e Double Eye (Eye \u0026amp; Eye mount)\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eNumber of Leaves:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eCapacity:\u003c\/strong\u003e 1,750 lb per spring (fits 3,500 lb axle — single axle)\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eFree Length:\u003c\/strong\u003e 25-1\/4\" (25.25\")\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eLoaded Length:\u003c\/strong\u003e 26\"\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eWidth:\u003c\/strong\u003e 1-3\/4\" (1.75\")\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eStack Height:\u003c\/strong\u003e 1.27\"\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eLoaded Arch Height:\u003c\/strong\u003e 1-3\/4\"\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eEye\/Bushing Inner Diameter:\u003c\/strong\u003e 9\/16\" (nylon anti-friction bushings included)\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eMaterial:\u003c\/strong\u003e Alloy Steel\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eSold:\u003c\/strong\u003e Each (1 spring)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\u003ch2\u003e🔄 CROSS-REFERENCE \/ COMPATIBLE PART NUMBERS\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003eDexter USA:\u003c\/strong\u003e PR4B\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eDexter Canada:\u003c\/strong\u003e 072-042-00\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eUniversal:\u003c\/strong\u003e UNA-212\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eTextrail:\u003c\/strong\u003e 9150014\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eNational Trailer Parts:\u003c\/strong\u003e UNA-212\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eCerka:\u003c\/strong\u003e 31-72-42\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eMGI:\u003c\/strong\u003e 719MG2008\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\u003ch2\u003e🚛 FITS THESE TRAILERS\u003c\/h2\u003e\n\u003cp\u003eThis spring is the standard suspension component on virtually all \u003cstrong\u003eDexter 3,500 lb single-axle trailers\u003c\/strong\u003e, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e✅ Cargo and enclosed trailers with Dexter 3,500 lb axles\u003c\/li\u003e\n\u003cli\u003e✅ Utility and landscape trailers\u003c\/li\u003e\n\u003cli\u003e✅ Boat trailers\u003c\/li\u003e\n\u003cli\u003e✅ Car haulers and open deck trailers\u003c\/li\u003e\n\u003cli\u003e✅ Motorcycle trailers\u003c\/li\u003e\n\u003cli\u003e✅ RV and travel trailers (single axle, 3,500 lb rated)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e👉 Verify your spring's \u003cstrong\u003efree length (25-1\/4\"), width (1-3\/4\"), and eye diameter (9\/16\")\u003c\/strong\u003e before ordering. These three measurements confirm fitment.\u003c\/p\u003e\n\n\u003chr\u003e\n\u003ch2\u003e🛠️ INSTALLATION NOTES\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e✅ Springs attach to the axle tube via U-bolts and tie plates (sold separately)\u003c\/li\u003e\n\u003cli\u003e✅ Mounts to trailer frame using spring hangers and shackles (sold separately)\u003c\/li\u003e\n\u003cli\u003e✅ Anti-friction nylon bushings are pre-fitted in both eyes — no press required\u003c\/li\u003e\n\u003cli\u003e✅ Can be mounted underslung (frame lower) or overslung (frame higher)\u003c\/li\u003e\n\u003cli\u003e✅ Replace in pairs for even suspension height and consistent load distribution\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\u003ch2\u003e📍 IN STOCK — SHIPS FROM HOWELL, MI\u003c\/h2\u003e\n\u003cp\u003e📞 Call\/Text: \u003cstrong\u003e(517) 225-1991\u003c\/strong\u003e\u003cbr\u003e🌐 Order Online 24\/7: \u003cstrong\u003eAAATrailer.com\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eServing trailer owners in Howell • Brighton • Lansing • Ann Arbor • Flint • Detroit and nationwide via fast shipping.\u003c\/p\u003e\n\n\u003chr\u003e\n\u003ch2\u003e🔥 WHY BUY FROM AAA TRAILER?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e✔ Same-day shipping on in-stock parts from Howell, MI\u003c\/li\u003e\n\u003cli\u003e✔ Genuine OEM Dexter parts — not knockoffs\u003c\/li\u003e\n\u003cli\u003e✔ Over 20 years serving trailer owners\u003c\/li\u003e\n\u003cli\u003e✔ Expert staff who know trailer suspension\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Dexter","offers":[{"title":"Default Title","offer_id":52823514120501,"sku":"072-042-00","price":84.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/9144\/0181\/files\/dexter-072-042-00-leaf-spring-4-leaf-double-eye-1750lb.jpg?v=1778019459"}],"url":"https:\/\/aaatrailer.com\/collections\/leaf-springs.oembed?page=2","provider":"AAA Trailer","version":"1.0","type":"link"}