Revolution Gear & Axle 03-06 Jeep Wrangler TJ Dana 44 Thick Rear Koyo 4.10 Ratio Gear Package

This package from Revolution Gear & Axle gives you everything you need to re-gear the Dana 44 rear axle in your 2003-2006 Jeep Wrangler TJ with a 4.10 ratio. You'll get a set of thick ring and pinion gears designed for this specific axle, along with a complete Koyo bearing installation kit. This kit is crucial for changing your Jeep's final drive ratio, which is often necessary when you upgrade to larger tires. A 4.10 ratio is a popular choice for Wranglers running 33-inch to 35-inch tires, helping to bring your engine's RPM back into its optimal power band for better acceleration and highway cruising.

Revolution Gear & Axle sources quality components, and this package includes a full set of Koyo bearings. Koyo is well-known for making durable drivetrain parts, and their bearings are a solid choice for this rebuild. The gears themselves are manufactured to be a direct fit for the Dana 44 axle found in the later model TJ Wranglers, and they are specifically designed as 'thick' gears. Thick gears have a stronger tooth profile, which is beneficial for the stresses placed on Jeep axles, especially when used off-road or with larger tires. This kit is designed to be a comprehensive solution for a proper gear change, ensuring you have the necessary parts for a reliable installation.

When undertaking a gear change like this, it's important to have the right tools and knowledge. Proper gear pattern setup is critical for the longevity of your new gears. Always refer to the manufacturer's installation instructions for detailed setup procedures, including backlash and pattern checking. This package focuses on providing the core components for the ratio change, so ensure you have any other necessary consumables like gear marking compound, RTV sealant, and differential fluid on hand before you begin.