Dorman 630-115 Drive Axle Shaft - Rear Left or Rear Right

Axle Shaft Replacement for GM Rear Applications

Dorman 630-115 is a direct replacement axle shaft for select rear-drive Cadillac and Chevrolet applications. Built from carbon steel and supplied with application-specific installation components, it addresses worn bearings, damaged shafts, and related rear axle service needs.

• Direct replacement axle shaft for select rear left and rear right positions
• Carbon steel construction for strength in driveline service
• 30-spline solid shaft axle design
• 30.32 in. overall length
• 5-lug wheel pattern with 5 wheel studs and 5 wheel nuts listed in the package contents
• Includes bearing and seal for the specified application
• ABS tone ring not included

Detailed Product Overview

This Dorman axle shaft, part number 630-115, is engineered to replace the original equipment axle shaft on select 1988-1990 Cadillac Brougham and Fleetwood models, as well as 1988-1990 Chevrolet Caprice rear axle applications. It is a solid shaft axle with 30 splines and a carbon steel build, making it a practical OE-style service part for rear axle repair. This part cross-references 26014037 for the same application.

Common Repair Reasons

• Rear axle shaft damage from wear, impact, or driveline failure
• Noise or rough operation caused by worn axle bearings
• Seal leakage at the axle end
• Service needs on 1989-1990 Cadillac Brougham rear left or rear right with 8.5 in. ring gear and 3.08 or 3.42 axle ratio
• Service needs on 1989-1990 Cadillac Fleetwood rear left or rear right with 8.5 in. ring gear and 3.08 or 3.42 axle ratio

Installation Notes

Verify axle spline count, ring gear size, axle ratio, and position before installation. Fits 1988 Chevrolet Caprice, rear left and rear right with J55 heavy duty power brakes, 30 spline, 8.5 in. ring gear, and 3.08 or 3.42 axle ratio. Fits 1989-1990 Chevrolet Caprice, rear left and rear right with limited slip differential and J55 heavy duty power brakes, 30 spline, 8.5 in. ring gear, and 3.08 axle ratio, or with J55 heavy duty power brakes, 30 spline, 8.5 in. ring gear, and 3.42 axle ratio. Confirm whether the vehicle requires an ABS tone ring before ordering, since it is not included with this axle shaft.

Quality Assurance

Dorman manufactures replacement driveline components to match original equipment fit and function on specified vehicles. Part number 630-115 is built as a direct replacement for the listed Cadillac and Chevrolet rear axle applications.