Revolution Gear & Axle 03-06 Jeep Wrangler TJ Dana 44 Rear Koyo Bearing 4.88 Ratio Gear Package

If you're looking to significantly change the gearing in your 2003-2006 Jeep Wrangler TJ Dana 44 rear axle, this Revolution Gear & Axle package is a solid option. Installing a 4.88 ratio is a common upgrade for Wranglers running larger tires, helping to bring your engine's RPMs back into a more efficient range on the highway and improving acceleration off-road. This kit is built around a Koyo bearing installation kit, known for their well-built components that stand up to the demands of drivetrain work.

This comprehensive package includes everything you need for a complete differential rebuild. You'll find the 4.88 ratio ring and pinion gears, a full set of Koyo installation bearings and races, and all the necessary installation hardware like pinion nuts, washers, and seals. Revolution Gear & Axle sources quality components to ensure a smooth installation and a reliable final product. The 4.88 ratio is a popular choice for Wranglers equipped with 35-inch or larger tires, effectively restoring lost power and improving drivability after the tire upgrade.

When undertaking a gear change like this, it's important to have all the correct parts on hand. This kit aims to provide that completeness, reducing the need for multiple trips to the parts store. Proper installation is key to the longevity of your new gears, so be sure to follow the manufacturer's instructions carefully, especially regarding gear pattern setup and the break-in procedure. A proper break-in period is crucial for seating the new gears correctly and ensuring they last for many miles to come.