SKF 99376 Engine Crankshaft Repair Sleeve - Rear

SKF 99376 Crankshaft Repair Sleeve for Rear Seal Repair

SKF 99376 is a crankshaft repair sleeve designed to restore a worn shaft sealing surface without removing the shaft. For rear main seal repair on select Chevrolet and GMC applications, it provides a precise stainless-steel surface that helps return the seal area to proper condition quickly.

Key Features

• Engine crankshaft repair sleeve for worn sealing surfaces
• 3.749 shaft diameter for the specified application
• Made from AISI 304 stainless steel for corrosion-resistant durability
• Installs without shaft removal and without changing seal size
• Includes an installation tool for proper sleeve placement
• Designed to restore a scored shaft surface in minutes

Product Details

The SKF 99376 Speedi-Sleeve is used to refinish shafts that have wear, grooves, or scoring where the rear main seal rides. Instead of regrinding the shaft, this sleeve creates a smooth outer sealing surface that supports consistent seal contact. It is a practical solution for rear seal service on 1996-2002 Chevrolet Express 1500 and Express 2500, 1996-2002 GMC Savana 1500 and Savana 2500, and rear applications on 1997-2000 Chevrolet Tahoe, 1997-2000 GMC Yukon, 1997-1999 Chevrolet C1500, C1500 Suburban, K1500, K1500 Suburban, and the matching GMC C1500, C1500 Suburban, K1500, and K1500 Suburban.

This part cross-references 12328973 and 145899376 for the same application. SKF 99376 is built for service work where a worn crankshaft sealing area needs a direct repair rather than full shaft replacement.

Common Repair Uses

• Rear main seal leakage caused by a worn crankshaft surface
• Grooves or scoring where the seal lip contacts the shaft
• Seal wear after high mileage or repeated service
• Need for a repair without changing seal size
• Time-consuming shaft regrinding or refinishing

Installation Notes

Install the sleeve over the worn sealing area using the supplied tool and follow the service procedure for the shaft diameter. The sleeve is designed for fast installation and does not require crankshaft removal in typical service use. Verify the rear seal surface is clean and free of debris before installation.

Quality Assurance

SKF manufactures Speedi-Sleeves to strict quality standards using stainless steel construction for long service life and dependable sealing performance.