Dorman 630-140 Drive Axle Shaft - Rear Left or Rear Right

OE-Style Rear Axle Shaft Replacement

Dorman 630-140 is a direct replacement axle shaft for select rear-drive applications where the original shaft is damaged or the bearings are worn. Built from carbon steel and supplied with application-specific installation components, it restores the axle assembly on vehicles such as the Chevrolet Camaro, Chevrolet Nova, and Buick Skylark.

This axle shaft is built for rear left and rear right positions on supported vehicles, with fitment covering multiple GM platforms from 1965 through 1979. The Dorman 630-140 part number is also referenced by 1255803, AXK159, and MG1010 for the same application.

Key Features

• Direct replacement axle shaft for select rear axle applications
• Carbon steel construction for strength and durability
• Solid shaft axle design
• 28-spline axle shaft configuration
• 10-hole / 10-lug wheel pattern
• Includes axle shaft, wheel studs, wheel nuts, bearing, and seal
• ABS tone ring not included
• Length: 29.53 in.

Detailed Description

Dorman 630-140 is engineered as an OE-style drive axle shaft replacement for rear left and rear right positions on select Buick, Chevrolet, Cadillac, Oldsmobile, and Pontiac vehicles. It is a solid shaft axle made from carbon steel and measures 29.53 inches in length, with 28 splines and a 10-hole wheel configuration. Application notes include coverage for vehicles with an 8.5 in. ring gear on certain models, and fitment for specific 10-bolt cover rear axle setups on others.

Compatible With 1965-1967 Chevrolet Malibu, rear left and rear right; 1965-1967 Chevrolet El Camino, rear left and rear right; 1967-1969 Chevrolet Camaro, rear left and rear right; 1970-1975 Chevrolet Nova, rear left and rear right; 1975 Buick Skylark, rear left and rear right; 1976-1979 Buick Skylark, rear left and rear right; and additional listed Cadillac Seville, Oldsmobile Omega, and Pontiac Phoenix applications. The Dorman 630-140 axle shaft supports direct replacement needs where the original shaft or bearing assembly has failed.

What It Helps Fix

• Broken or damaged rear axle shaft
• Noise or vibration from worn axle bearings
• Axle-related wheel wobble or instability
• Leakage at the axle seal area
• Loss of proper rear wheel drive engagement

Installation Notes and Tips

Verify axle position, spline count, length, and rear axle housing details before installation. Confirm whether the vehicle uses an 8.5 in. ring gear or a 10-bolt cover rear axle configuration, as noted in the fitment data. Check that the ABS tone ring requirement matches the vehicle, since this shaft does not include one.

For best results, inspect the bearing and seal surfaces during service and replace worn related components as needed. Confirm interchange and fitment against the vehicle’s rear left or rear right application before ordering.

Quality Assurance

Dorman manufactures direct replacement drivetrain components for specific vehicle applications, and this axle shaft is built to match the original equipment fitment requirements for the listed models. Part number 630-140 is cross-referenced to 1255803, AXK159, and MG1010.