Ratech Pinion Shim Kit

The Ratech Pinion Shim Kit line is a range of differential pinion shims, also called pinion depth shims or pinion bearing shims. They are used when setting up a ring and pinion gear set. Pinion shims set the pinion depth and help set pinion bearing preload. Both affect gear mesh, tooth contact pattern, noise and the life of the gears.

Key Features:

• Precision steel construction: The shims are made of steel and designed for the repeated measuring and adjusting that differential setup needs.
• Fine thickness steps: Ratech shim packs cover a broad thickness range with small increments. This helps you dial in pinion depth or pinion drag without gaps in the shim stack.
• Made in the USA: Ratech lists its pinion shims as American-made.
• Built for performance use: Solid steel shims are well suited to street, strip and off-road builds where high loads are common.
• Suited to ring and pinion installs: Use them during a gear swap, a rebuild or a pinion bearing replacement.

Setting up pinion shims takes careful measuring, usually checking pinion depth and bearing drag over several trial builds. Add or remove shims until you reach the specified drag at the correct pinion nut torque. Ratech has been a long-time name in differential installation parts, and this line gives you the shims for an accurate, repeatable setup.