Carrier Shims GM 12 Bolt

The Carrier Shims GM 12 Bolt are essential precision components designed for adjusting and maintaining proper carrier preload and bearing clearance in high-performance rear axle assemblies. These shims are particularly useful for those rebuilding factory differentials or upgrading to performance setups, ensuring that the 12-bolt carrier is positioned correctly relative to the ring gear.

Manufactured to exacting tolerances, these shims facilitate precise adjustments of carrier bearing preload. They work by applying controlled pressure on the carrier bearings through the differential housing, which helps maintain mesh geometry and reduces parasitic friction. The shims are made from precision-machined steel, ensuring durability and reliability in performance applications.

Ideal for technicians and performance builders, these shims are compatible with Chevrolet, GMC, and other GM platforms equipped with the 12-bolt rear axle. Their application spans muscle cars, trucks, and street machines, making them a versatile choice for differential assembly and service. Proper installation requires careful measurement and a solid understanding of differential geometry.