SKF SDK323-A Axle Differential Bearing and Seal Kit - Rear

SKF Axle Differential Bearing and Seal Kit

SKF SDK323-A is an axle differential bearing and seal kit for rear applications that need service parts matched to the original differential setup. It is built around bearing, seal, and gasket components selected for accurate repair on classic GM rear axles with an 8.875" ring gear.

Compatible with Chevrolet Camaro, Caprice, El Camino, Impala, Monte Carlo, and Nova, as well as Pontiac Firebird, GTO, LeMans, Bonneville, Catalina, and Grand Prix, this kit supports direct differential service on 1965-1972 rear axle applications. The SKF SDK323-A part number is also referenced in service catalogs under related OE-style applications.

Key Features

• Axle differential bearing and seal kit for rear service
• Inside diameter: 11.0000
• Width: 2.500
• Bearing type: DIFF4TP
• Includes bearings with matching cones and cups
• Seals are built to SKF standards with Bore-Tite coating for improved sealing performance
• Form-fitting gaskets and silicone sealant are provided where applicable
• SKF SDK323-A is engineered for differential repair on 8.875" ring gear applications

Detailed Description

SKF SDK323-A is a differential service kit designed for rear axle repair on select Chevrolet, Oldsmobile, and Pontiac vehicles from 1965-1972. It is a practical choice for technicians servicing classic muscle and full-size platforms that use the 8.875" ring gear, including Chevrolet Camaro and Pontiac Firebird rear differential applications. By combining bearings, seals, and related sealing components in one kit, SKF helps reduce the chance of repeat teardown work caused by mismatched or worn service parts.

This part cross-references 4K-5080 and 39X31541A for the same application.

What It Helps Fix

• Rear differential bearing noise
• Gear oil leaks at the axle or differential seals
• Worn bearing surfaces that affect differential operation
• Service issues on 8.875" ring gear rear axles
• Repeat repairs caused by incomplete sealing components

Installation Notes and Tips

Confirm axle and ring gear specifications before installation, especially the 8.875" ring gear application. Inspect the differential housing, bearing journals, and sealing surfaces for wear or damage before assembly. Proper setup and preload are important during differential service, so follow the vehicle service procedure for bearing installation and seal placement.

Quality Assurance

SKF manufactures these kits to meet or exceed original equipment specifications, using premium bearings with matched cones and cups and seals made to SKF standards. The Bore-Tite seal coating is used to improve sealing performance in service.