Dorman 630-142 Drive Axle Shaft - Rear Left or Rear Right

OE-Style Rear Drive Axle Shaft Replacement

Dorman 630-142 is a direct replacement drive axle shaft for select rear applications on Chevrolet, Buick, Oldsmobile, and Pontiac vehicles. It replaces a damaged axle shaft or a unit with worn bearings and includes application-specific installation components for the listed fitments.

• Direct replacement axle shaft for rear left and rear right positions
• Solid shaft axle construction in carbon steel
• 30.39 in. overall length with 28 splines
• 10-hole design with 10 wheel lug quantity
• Package contents: axle shaft, wheel studs, wheel nuts, bearing, and seal
• ABS tone ring not included

Fitment Details

Compatible With select 1973-1988 rear axle applications, including Fits 1988 Chevrolet Caprice, rear left and Fits 1988 Chevrolet Caprice, rear right; Fits 1987 Chevrolet Caprice, rear left and Fits 1987 Chevrolet Caprice, rear right; and Fits 1983-1986 Chevrolet Caprice, rear left and Fits 1983-1986 Chevrolet Caprice, rear right. Additional coverage includes Fits 1977-1981 Chevrolet Caprice, rear left and Fits 1977-1981 Chevrolet Caprice, rear right, plus select Buick LeSabre, Pontiac Parisienne, Oldsmobile Delta 88, Chevrolet Impala, Pontiac Bonneville, Pontiac Catalina, Buick Riviera, Chevrolet El Camino, Malibu, Monte Carlo, Oldsmobile Cutlass, Cutlass Supreme, Pontiac Grand LeMans, Grand Prix, LeMans, and Buick Century/Regal applications with the listed axle and ring gear notes.

This part cross-references 1255801 for the same application. Dorman 630-142 is built for vehicles that use an 8.5 in. ring gear and the specified axle configurations, including Type C, G, K, or W axle notes where listed. For Chevrolet Caprice, Buick LeSabre, and Pontiac Parisienne rear axle service, verify the axle ratio, brake package, and stamped axle code before ordering.

What It Helps Fix

• Broken or bent rear axle shaft
• Noise from worn axle bearings or seal wear
• Wheel-end vibration caused by shaft damage
• Axle leakage at the seal area
• Loss of driveline function from spline or shaft wear

Installation Notes

Confirm rear left or rear right position, axle ratio, ring gear size, brake package, and axle code before installation. This axle shaft is listed for specific Chevrolet Caprice, Buick LeSabre, and Pontiac Parisienne configurations, so matching the notes in the fitment table is essential. ABS tone ring is not included, so reuse or source the correct tone ring only if your vehicle requires one.

Quality Assurance

Dorman supplies this axle shaft as an OE-style replacement for the listed vehicles and includes the bearing, seal, wheel studs, and wheel nuts specified for the application. The carbon steel shaft is matched to the original fitment requirements for the covered rear axle applications.