Dorman 630-604 Drive Axle Shaft - Rear Right

Rear Right Axle Shaft Replacement

Dorman 630-604 is a direct replacement drive axle shaft for the rear right position on select Chevrolet Trailblazer, GMC Envoy, Buick Rainier, and Oldsmobile Bravada models. It is built from carbon steel and supplied with application-specific components for the axle assembly, including the bearing and seal listed in the package contents.

Key Features

• Direct replacement drive axle shaft for the rear right side
• Carbon steel construction for driveline service applications
• 28-spline, solid shaft axle design
• 31.42 in. overall length
• 6-lug wheel pattern with 6 wheel studs
• ABS tone ring not included
• Package contents include axle shaft, wheel studs, wheel nuts, bearing, and seal

Detailed Description

This Dorman axle shaft, part number 630-604, is engineered to replace the original rear right axle shaft on specific GM SUVs from 2002 through 2009. It matches the application requirements for vehicles such as the Chevrolet Trailblazer and GMC Envoy, along with Buick Rainier and Oldsmobile Bravada models listed below. The solid shaft axle design, 28 splines, and 31.42-inch length support proper driveline fitment where the original axle shaft has worn, bent, or failed.

This part cross-references Monroe Shocks & Struts (e.g., AXK153, SK630604) for the same application.

Vehicle Fitment

• Fits 2007-2009 Chevrolet Trailblazer, rear right, includes bearing; w/17 in. wheels.
• Fits 2006 Chevrolet Trailblazer, rear right, includes bearing; w/4.10 axle ratio; exc. Positraction.
• Fits 2006 Chevrolet Trailblazer, rear right, includes bearing; w/3.42 axle ratio; w/3.73 axle ratio.
• Fits 2002-2005 Chevrolet Trailblazer, rear right, includes bearing.
• Fits 2007-2009 GMC Envoy, rear right, includes bearing; w/17 in. wheels.
• Fits 2007-2009 GMC Envoy, rear right, includes bearing; exc. Positraction.
• Fits 2006 GMC Envoy, rear right, includes bearing; wo/4.10 axle ratio.
• Fits 2005 GMC Envoy, rear right, includes bearing; w/4.10 axle ratio.
• Fits 2007 Buick Rainier, rear right, includes bearing; exc. Positraction.
• Fits 2007 Buick Rainier, rear right, includes bearing; w/17 in. wheels.
• Fits 2006 Buick Rainier, rear right, includes bearing; w/4.10 axle ratio; exc. Positraction.
• Fits 2006 Buick Rainier, rear right, includes bearing; w/3.42 axle ratio; w/3.73 axle ratio.
• Fits 2005 Buick Rainier, rear right, includes bearing.
• Fits 2004 Buick Rainier, rear right, includes bearing; exc. Positraction; w/RPO Code GT4 (3.73 axle ratio).
• Fits 2004 Buick Rainier, rear right, includes bearing; w/3.42 axle ratio; w/4.10 axle ratio.
• Fits 2004 Buick Rainier, rear right, includes bearing; Positraction; w/RPO Code GT4 (3.73 axle ratio).
• Fits 2002-2004 Oldsmobile Bravada, rear right, includes bearing.

Common Repair Uses

• Rear axle shaft damage from impact or driveline wear
• Noise or vibration traced to a worn axle assembly
• Leakage at the axle bearing or seal area
• Wheel-end looseness related to axle shaft wear
• Service replacement for rear right driveline repair on Trailblazer, Envoy, Rainier, or Bravada models

Installation Notes and Tips

Verify rear right fitment by year, axle ratio, wheel size, and Positraction configuration before ordering. This axle shaft is listed for applications with an included bearing, and the ABS tone ring is not included. Confirm spline count, length, and wheel lug configuration against the original part before installation.

Quality Assurance

Dorman manufactures this axle shaft as a direct replacement part for the specified OE applications. Part number 630-604 is built to match the listed vehicle requirements and installation details for the covered GM platforms.