Pinion Depth Checker

The Pinion Depth Checker by T AND D MACHINE (Model 11000) is an essential precision tool for any serious gear technician or differential specialist performing pinion depth setup on ring and pinion assemblies. Whether you're rebuilding a factory differential, installing a new gear set, or diagnosing noise issues in an existing setup, accurate pinion depth measurement is crucial for proper gear mesh and longevity.

This tool eliminates guesswork and compensates for manufacturing tolerances that vary between gear sets and carrier housings. Pinion depth directly controls the contact pattern between ring and pinion teeth, affecting load distribution, noise generation, and component life. The Pinion Depth Checker is designed to mount to the carrier housing and is compatible with standard 0-1 inch dial indicators to measure the exact shim thickness required before final assembly.

Technicians rebuilding Ford 9-inch differentials, GM 12-bolt housings, and modern IRS carriers all depend on this type of gauge to avoid costly comebacks and premature gear failure. The robust construction and calibrated measuring surfaces ensure repeatable readings across multiple differential builds and various ring gear designs. With its portable design, this tool is ideal for both professional shop and home garage environments.