Revolution Gear & Axle 91-99 Jeep Cherokee XJ 8.25in Rear Koyo Bearing 4.88 Ratio Gear Package

If you're looking to re-gear the rear differential on your 1991-1999 Jeep Cherokee XJ, this Revolution Gear & Axle package is a solid choice. This kit is designed to give you a 4.88 gear ratio, which is ideal for larger tires and off-road use, helping your engine operate in its power band more effectively. It includes high-quality Koyo bearings, known for their durability and smooth operation, ensuring your new gears mesh properly and last a long time.

This package contains everything you need for a proper differential rebuild. You get the new 4.88 ring and pinion gears, a complete set of Koyo installation bearings and races, and all the necessary installation hardware like seals, gaskets, and shims. Revolution Gear & Axle uses precision-machined gears to ensure proper tooth contact and quiet operation. The 4.88 ratio is a significant change from stock and is best suited for Jeeps running 35-inch or larger tires, allowing you to regain lost acceleration and towing power.

When tackling a gear change like this, it's important to follow the manufacturer's break-in procedure carefully. This involves a specific driving cycle of moderate speeds without heavy acceleration or braking for the first several hundred miles. This process allows the new gear teeth to properly seat against each other, ensuring longevity and optimal performance. This kit is a comprehensive solution for anyone serious about improving their Cherokee's drivetrain for larger tires and tougher trails.