Timken KWK99435 Engine Crankshaft Repair Sleeve - Rear

Timken KWK99435 Crankshaft Repair Sleeve

Timken KWK99435 is a crankshaft repair sleeve for seal-worn shafts that need a renewed sealing surface without machining. It is built for rear applications on select Chevrolet and GMC trucks, vans, and chassis models from 1991-2000.

Key Features

• Stainless steel sleeve with hard chrome finish for extended service life
• Thin-wall design preserves seal size for lip-seal applications
• No shaft machining or extensive preparation required before installation
• Includes a removable installation flange and dedicated installation tool
• Fits rear manual transmission output shafts and differential pinions on listed applications

Application Details

Use Timken KWK99435 when the sealing surface on the shaft is worn, grooved, or no longer providing a reliable seal. This repair sleeve restores the sealing area on select Chevrolet C2500, Chevrolet C3500, Chevrolet Express 3500, GMC C2500, GMC C3500, and GMC Savana 3500 rear applications, along with other listed Chevrolet and GMC rear-drive platforms. The part number KWK99435 is commonly searched for rear shaft seal repair on Chevrolet and GMC manual transmission output shafts and differential pinions.

This part cross-references no additional part numbers in the provided data.

What It Helps Fix

• Oil or fluid leakage at a worn shaft seal surface
• Grooves or scoring on the sealing land
• Seal wear caused by repeated contact on the shaft
• Need for shaft repair without removing the shaft for machining
• Restoration of a lip-seal contact surface on rear driveline components

Installation Notes

Clean the shaft thoroughly before installation and verify the seal surface is free of debris, burrs, and heavy damage. The supplied installation flange and tool help reduce sleeve distortion during mounting. Confirm the rear application and shaft type against the vehicle listing before installation; KWK99435 is listed for 1991-2000 Chevrolet and GMC rear applications including C2500, C3500, K2500, K3500, Express 3500, Savana 3500, C2500 Suburban, K2500 Suburban, P30, P3500, G30, G3500, R2500 Suburban, R3500, and V3500 models.

Quality Assurance

Timken manufactures this Kwik-Sleeves repair sleeve as a precision-engineered stainless steel and hard-chromed component for seal repair service.