Pinion Shims Gm

The Pinion Shim GM by RATECH is a precision steel component engineered for General Motors differentials requiring exact pinion depth adjustment. Whether you're rebuilding a stock rear axle or fine-tuning a modified differential setup, pinion shims are critical for achieving proper gear mesh and eliminating backlash issues. These shims compensate for manufacturing tolerances and allow mechanics to dial in the exact pinion position necessary for quiet, efficient power transfer without premature wear or gear noise.

Manufactured from hardened steel in natural finish, the Pinion Shim GM measures 2.55 x 0.3 x 3.05 inches and weighs just 0.05 lbs, making it lightweight yet durable enough to withstand continuous torque and shock loads. The shim works by positioning the pinion gear relative to the ring gear, ensuring consistent contact pattern and load distribution across all gear teeth. Proper pinion depth is non-negotiable in differential assembly—incorrect positioning leads to gear whine, accelerated tooth wear, and potential catastrophic failure under load. RATECH's precision-ground shims hold tight tolerances, allowing technicians to achieve factory specifications or custom settings for performance builds.

This shim is ideal for restorers, performance builders, and service technicians working on GM differentials across multiple applications. Serious gear work demands accurate measurement and stacking of shims in the correct sequence—RATECH's steel construction resists deformation under repeated assembly cycles. If you're upgrading axle ratios, installing higher-horsepower powerplants, or simply refreshing an aging differential, verified pinion depth adjustment using quality shims is essential for reliability and longevity. Installation requires proper dial indicator setup and understanding of contact pattern verification during the break-in process.