Revolution Gear & Axle 87-96 Jeep YJ/Cherokee XJ Dana 44 Thick Rear Koyo 4.88 Ratio Gear Package

This Revolution Gear & Axle package features Koyo bearings, known for their smooth operation and durability, paired with a 4.88 ratio specifically for the Dana 44 rear axle found in 1987-1996 Jeep YJ Wranglers and Cherokee XJs. Choosing the right gear ratio is crucial for optimizing your vehicle's performance, especially if you've modified your tire size. A 4.88 ratio is typically suited for larger tires, helping to bring your engine's RPMs back into an efficient range for highway cruising and improving acceleration off the line.

This is a 'thick' gear set, meaning it's designed for applications where the original differential housing might not have the correct pinion angle or where you're looking for added strength. The package includes all the necessary Koyo bearings and installation components to get your Dana 44 rear end rebuilt with a more aggressive ratio. Revolution Gear & Axle sources quality components to ensure a solid rebuild that can handle the demands of off-road use or heavier towing. Proper installation is key, and this kit is intended for those undertaking a comprehensive differential rebuild.

When installing a new gear set and bearings, it's important to follow the manufacturer's break-in procedure carefully. This typically involves a period of moderate driving with specific speed and acceleration limits, followed by an oil change. This process allows the new gear teeth to properly mesh and wear in, ensuring longevity and quiet operation. This kit is a well-built option for Jeep owners looking to re-gear their Dana 44 rear axle for improved performance with larger tires.