Pilot Washer - Kent-Moore

The Kent-Moore J-21777-42 Pilot Washer is a specialized, precision-machined tool engineered for accurately setting the pinion depth on 7.62-inch and 8.62-inch axles. This professional-grade component plays a critical role in ensuring proper gear mesh by reacting against the front bearing to preload both the front and rear bearings, a fundamental step in differential assembly and maintenance.

Key Features

• Precision-Machined Hardened Steel: Constructed from durable, hardened steel, ensuring longevity and consistent performance under demanding shop conditions.
• Serrated Edge Design: Features a serrated edge that provides a secure grip on the pinion shaft, effectively preventing unwanted rotation during critical adjustments.
• Chamfered Edge for Smooth Installation: Designed with a chamfered edge to facilitate smooth and effortless installation onto the pinion shaft.
• Accurate Pinion Depth Setting: Crucial for achieving the correct pinion depth, which is essential for optimal differential operation and extended component life.
• Bearing Preload Functionality: Specifically engineered to react against the front bearing, preloading both front and rear bearings for precise measurements.

Applications

The J-21777-42 Pilot Washer is an indispensable tool for technicians working on a wide range of GM vehicles equipped with 7.62" and 8.62" axles. Its applications include:

• H2 Car
• C/K Trucks
• S/T Trucks
• M/L Trucks
• G Vans
• Various Buick, Oldsmobile, Chevrolet, Pontiac, and GMC vehicles.

This pilot washer is often utilized as part of larger Kent-Moore pinion setting kits, such as the J-34925 Pinion Shim Selection Kit, to determine the correct shimming for proper gear mesh.

Specifications

• Manufacturer: Kent-Moore
• Model Number: J-21777-42
• Shipping Weight: 1 lb.