Yukon Gear & Install Kit 8.6in. GM 4.56 Rear w/AK C10/99-08 Truck & SUV

This Yukon Gear & Axle kit starts with a 4.56 ratio ring and pinion gear set, designed for GM 8.6-inch rear axles. The 4.56 ratio is a popular choice for those looking to improve acceleration and towing capability, especially after adding larger tires. This kit packages the gears with a complete master installation kit, meaning you get all the necessary bearings, seals, and small parts needed for a proper differential rebuild. USA Standard Gear, a brand under Yukon, puts its components through rigorous in-house testing to ensure they meet dimensional, material, and fitment standards.

When you're re-gearing a differential, having all the correct components in one box makes the job much smoother. This kit includes everything from the ring and pinion gears themselves to the small crush sleeves, shims, and pinion nut. The master installation kit contains all the bearings and seals required to ensure your new gears run smoothly and are properly protected. This package is suitable for a wide range of GM trucks and SUVs, including models like the Chevrolet Silverado 1500, GMC Sierra 1500, and Chevrolet Tahoe, from the late 1990s through the late 2000s.

Proper installation is key to the longevity and performance of any differential work. While this kit provides all the necessary parts, it's important to follow the manufacturer's installation instructions carefully, which typically involve setting proper gear mesh, backlash, and bearing preload. This ensures the gears mesh correctly and run quietly, providing reliable performance for daily driving, trail running, or towing.