Pinion Shim Pack 8in Ford

The Pinion Shim Pack 8in Ford by RATECH is an essential drivetrain component designed for technicians and enthusiasts who need precision differential setup. Pinion shims control the critical mesh depth between the pinion gear and ring gear—a measurement that directly affects gear noise, wear patterns, and power delivery. This steel shim pack is purpose-built for Ford 8-inch differentials, ensuring OEM-correct geometry and eliminating excessive backlash or binding that compromises both performance and longevity.

Manufactured from hardened steel in natural finish, the Pinion Shim Pack 8in Ford delivers the durability required for high-load applications and repeated adjustments. RATECH shims are precision-cut to exacting tolerances, allowing techs to dial in the ideal pinion depth without guesswork. The kit format means you receive a range of thicknesses, enabling fine-tuned mesh adjustment whether you're assembling a fresh differential, changing ring-and-pinion ratios, or correcting wear-related runout. Each shim resists deformation under the extreme pressures found in 8-inch housings, maintaining consistent geometry across thousands of miles.

This shim pack is indispensable for Ford 8-inch differential builds, whether in classic Mustangs, early Broncos, or light-duty truck applications. Installation requires basic differential knowledge—the shims mount between the pinion bearing and housing, allowing adjustment during the crucial setup phase. Proper pinion depth eliminates bearing preload issues, reduces noise under load, and maximizes gear life. Weighing just 0.15 lbs and measuring 6.1 x 0.55 x 7.45 inches, the kit is compact yet comprehensive, making it the go-to solution for anyone performing serious Ford 8-inch rear-end work.