RAM TJD-12000-GR Square Jack Sidewind Gear Set — Fits TJD-12000 Series 10K/12K Jacks
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The TJD-12000-GR Sidewind Gear Set restores smooth crank operation to your RAM square-tube, direct-weld trailer jack. When the top gears wear, chip, or bind, this kit lets you rebuild the jack head instead of buying a whole new jack.
📦 What's in the Kit
- 2 precision-machined steel gears
- 2 hardened roll pins
✅ Fits RAM TJD-12000 Series Jacks
- 10,000 lb lift / 12,000 lb support capacity
- 4" square-tube, sidewind, direct-weld jacks
- Common models: TJD-12000SP-F2, TJD-12000SP-R2, TJD-12000SP-R2NH
Not for two-speed, top-wind, or round-tube jacks.
📐 Specifications
| Specification | Details |
|---|---|
| Material | Heat-treated carbon steel |
| Large gear | ~2.50" outer diameter |
| Small gear | ~0.99" outer diameter |
| Roll pins | ~1/4" x 1-1/4" hardened steel (2) |
| Finish | Bare steel, grease-packed for install |
| Kit weight | ~2.0 lb |
| Manufacturer PN | TJD-12000-GR |
🔧 Installation Tips
Remove the jack's top cap and old roll pins, then the worn gears. Clean the internal surfaces, inspect the bearing and threaded rod, pack the new gears with high-pressure lithium grease, align the gear teeth, and drive in the new roll pins. Verify the crank spins freely before applying load.
🧩 Rebuilding the Whole Jack?
Ask us about the other TJD-12000 service parts — cap (TJD-12000-CP), return spring (TJD-12000-RSP), rod & nut (TJD-12000-RODNUT), bearing (TJD-12000-BR), and plunger pin (TJD-12000-PPN). We'll help you get everything you need in one shot.
📞 (517) 225-1991 🌐 AAATrailer.com | 4675 E Grand River Ave, Howell, MI 48843
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