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

If you're looking to fit larger tires on your 2003-2006 Jeep Wrangler TJ and want to maintain or improve its off-road capability, changing your differential gear ratio is a key step. This Revolution Gear & Axle package is built around a Koyo 4.88 ratio, which is a popular choice for TJ owners running 35-inch or larger tires. This ratio helps bring your engine's RPMs back into a more efficient range at highway speeds, making it feel more like stock and improving acceleration, while also providing the low-end torque needed for serious trail use.

This kit specifically uses a 'thick' gear set designed for the Dana 44 rear axle found in later model TJ Wranglers. Thick gears have a stronger tooth profile compared to standard gears, offering improved durability, especially under the stress of off-road driving and larger tires. Revolution Gear & Axle sources high-quality components, and this package includes the essential Koyo bearings and installation hardware needed for a complete rebuild. Koyo is well-known for producing durable bearings that can handle the demands of a drivetrain application like this. Proper installation is critical for the longevity of any gear set, so ensure you follow the manufacturer's instructions carefully, including proper gear pattern setup and break-in procedures.

This comprehensive package aims to give you everything you need for a successful gear change in your Dana 44 rear axle. By upgrading to this 4.88 ratio, you'll notice a significant difference in how your Wrangler performs both on and off the pavement, especially with the added weight and rolling resistance of larger tires. It's a solid option for anyone serious about customizing their TJ for adventure.