Dorman 630-603 Drive Axle Shaft - Rear Left

Dorman 630-603 Rear Left Axle Shaft

This Dorman axle shaft is a direct replacement for the original equipment on select Chevrolet Trailblazer, GMC Envoy, Buick Rainier, and Oldsmobile Bravada applications. Built from carbon steel with a solid shaft axle design, it addresses rear axle shaft damage and bearing wear with application-specific components for the correct repair.

Key Features

• Direct replacement axle shaft for the rear left position
• Carbon steel construction for strength and durability
• Solid shaft axle design with 28 splines
• 33.29 in. overall length
• 6-lug wheel pattern with 6 wheel lug holes
• ABS tone ring not included
• Package contents include axle shaft, wheel studs, wheel nuts, bearing, and seal

Detailed Description

Dorman 630-603 is a rear left drive axle shaft engineered for specific GM SUV applications where the original shaft has been damaged or the bearing has worn out. It is a direct OE-style replacement for 2002-2009 Chevrolet Trailblazer, 2002-2009 GMC Envoy, 2004-2007 Buick Rainier, and 2002-2004 Oldsmobile Bravada models listed in the fitment data. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application. If you are searching for a rear left axle shaft for a Chevrolet Trailblazer or GMC Envoy, Dorman 630-603 provides the correct fitment details for the listed axle ratios, wheel sizes, and Positraction notes.

What It Helps Fix

• Rear axle shaft damage from wear, impact, or fatigue
• Noise or vibration related to a worn axle bearing
• Wheel-end issues tied to a failing seal
• Driveline concerns caused by spline or shaft wear
• Loss of proper rear wheel support at the axle end

Installation Notes and Tips

Verify the vehicle’s year, model, rear left position, axle ratio, wheel size, and Positraction configuration before ordering. This axle shaft is listed for applications with bearing included, and the ABS tone ring is not included. Confirm the 28-spline count and 6-lug wheel setup against the original part before installation. For best results, inspect the surrounding hub and axle components for wear before completing the repair.

Quality Assurance

Dorman supplies direct replacement drivetrain components built to match the original equipment application on the listed vehicles. Part number 630-603 is cataloged for confirmed fitment on select Chevrolet Trailblazer, GMC Envoy, Buick Rainier, and Oldsmobile Bravada rear left applications.