4.56 Ring and Pinion Gear Set with Limited Slip

The USA Standard Gear ZGK2029 is a comprehensive rear ring and pinion gear set and master installation kit designed for various GM 8.6-inch differentials. The package also includes axle bearings and seals, providing a one-stop solution for differential repairs and upgrades. It is engineered for long life and is fully rebuildable, featuring a high-strength nodular case and forged 4320 chromoly spider gears. USA Standard Gear ensures rigorous in-house quality testing to meet dimensional, material, and fitment standards for their ring and pinion sets, which are built to withstand everyday commuting, trail running, and spirited driving. This kit is specifically configured for applications requiring a 10-bolt rear cover and a 10-bolt ring gear, with an 8.5-inch ring gear diameter. The 4.56 gear ratio offers an increase in torque and improved performance for applications that may benefit from more aggressive gearing. The Quick Kits, like the ZGK2029, are designed to provide a convenient and affordable solution for common differential repairs, allowing vehicles to get back on the road quickly.