Jeep Wrangler Differential Install Kit - Front + Rear - Revolution Gear & Axle - Dana 44 Thick F+R Koyo 4.56 Ratio - 2003–2006. This kit supplies matched front and rear Dana 44 gear sets and components for TJ Rubicon owners who need a reliable gear change or full differential refresh.

Built for 2003–2006 Jeep Wrangler TJ Rubicon applications, this Revolution Gear & Axle package pairs 4.56 ring-and-pinion ratios with Koyo bearings and the thicker Dana 44 gear set specified for Rubicon axles. The matched front and rear ratio maintains proper driveline balance and reduces stress from mismatched gearing. Components are chosen to fit the Dana 44 platform and support both trail use and road driving when installed and set up correctly. This kit is appropriate for gear swaps or rebuilding both differentials.

Features

• Fits 2003–2006 Jeep Wrangler TJ Rubicon (Dana 44 front & rear)
• Revolution Gear & Axle 4.56 ring-and-pinion ratio
• Koyo bearings included for consistent bearing support
• Thick Dana 44 gear cut for Rubicon axle applications
• Matched front and rear gears to maintain driveline compatibility

If you have questions about fitment, installation, or compatibility with other modifications, call us directly — we’re happy to help. We offer installation and customization services at two locations: Austin, Texas and the Los Angeles, California area. Call 512-982-9393 (TX) or 562-981-6800 (CA) for details or to schedule service.

If you’re thinking about purchasing multiple items, contact us for shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov