Revolution Gear & Axle 84-96 Jeep YJ/Cherokee XJ Dana 35 Rear Timken Bearing 5.13 Ratio Gear Package

This 5.13 ratio gear package from Revolution Gear & Axle is built around a set of genuine Timken bearings, a well-known name for their durability and precision. This specific ratio is a significant change from stock, designed to bring your Jeep YJ or Cherokee XJ's drivetrain back into its optimal operating range, especially if you've added larger tires. The Dana 35 rear axle is a common setup, and this kit provides the essential components to re-gear it for improved performance and drivability.

Inside this package, you'll find everything needed for a comprehensive re-gear job. Revolution Gear & Axle sources quality components, and this kit includes the ring and pinion gears, along with the crucial Timken bearing and seal kit. This ensures that the new gears mesh smoothly and operate with minimal friction, which is key for longevity and efficiency. Installing a new gear ratio like 5.13 is a substantial modification that changes how your engine and transmission work together. It allows your engine to operate at lower RPMs on the highway with larger tires, reducing strain and improving fuel economy compared to running oversized tires with stock gearing. This is a job that requires specialized tools and knowledge, so it's best suited for experienced DIYers or a professional mechanic.

When undertaking a gear change, it's important to follow the manufacturer's break-in procedure meticulously. This typically involves a period of moderate driving without heavy loads, followed by a series of heat cycles to properly seat the new gear teeth. This careful break-in process is critical for the long-term reliability of your new differential gears. This kit is a solid option for Jeep owners looking to optimize their vehicle's performance after modifications like larger tires.