Jeep Wrangler TJ Differential Install Kit - Rear - Revolution Gear & Axle - Dana 44 Koyo Bearing 3.73 Ratio - `03-`06. This install kit is built for 2003–2006 Wrangler TJ rear Dana 44 axles and provides the matched gear components and bearing specified for a 3.73 final drive.

The package includes a matched ring and pinion set from Revolution Gear & Axle and a Koyo pinion bearing, engineered to restore correct gear mesh and reliable operation for stock and lightly modified TJs. A 3.73 ratio keeps drivability predictable with common tire sizes and helps retain speedometer accuracy without reprogramming. Designed for owners rebuilding a Dana 44 or performing an axle swap, this kit gives you the core components needed for a professional-quality differential install when set up by a qualified technician.

Features

• Fits Jeep Wrangler TJ (2003–2006) with Dana 44 rear axle
• Matched Revolution Gear & Axle ring and pinion — 3.73 ratio
• Includes Koyo pinion bearing
• Supplies the primary components for a rear differential install
• Suitable for rebuilds, axle swaps, and performance maintenance

Questions or need help with fitment and installation? Call us: 512-982-9393 (TX) or 562-981-6800 (CA). We have locations in Austin, Texas and the Los Angeles, California area where we offer installation and customization services. Our shop staff can advise on proper setup and available options to get your TJ performing the way you want.

If you’re planning to buy multiple items, contact us for shipping discounts. We install on premises at both locations.

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