Carlson H439 Drum Brake Adjusting Spring Kit - Front, Rear or Rear Left

Carlson H439 Drum Brake Adjusting Spring Kit

Carlson H439 is a rear drum brake adjusting spring kit for vehicles using 11-inch drum brake setups and related 462, 363, 364, 365, or 652 applications. It helps restore proper brake shoe adjustment and consistent drum brake operation on a wide range of Cadillac, Chevrolet, Buick, Oldsmobile, Pontiac, Dodge, and Jeep models.

• Rear drum brake adjusting spring kit for service on drum brake assemblies
• Fits applications with 11" x 2" drum brakes and select 11" brake systems
• Used on vehicles including Cadillac DeVille, Chevrolet Caprice, and Jeep Wagoneer
• Direct fitment coverage across 1965-1999 model years
• Carlson H439 for rear brake service on supported drum brake configurations

Fitment and application details

This part is used in rear drum brake assemblies where the adjusting spring helps maintain correct shoe adjustment and brake hardware function. It is listed for a broad range of classic and late-model rear drum brake applications, including Fits 1997-1999 Cadillac DeVille, rear; Fits 1994-1999 Dodge Ram 1500, rear; Fits 1991-1996 Buick Roadmaster, rear; and Fits 1977-1985 Chevrolet Impala, rear. It also covers select Cadillac Fleetwood, Chevrolet Caprice, Oldsmobile Delta 88, Pontiac Bonneville, and Jeep Grand Wagoneer applications. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common issues this part addresses

• Weak or stretched drum brake adjusting springs
• Improper rear brake shoe adjustment
• Brake hardware wear during drum brake service
• Uneven drum brake operation after maintenance
• Restoration of original-style rear brake hardware on supported vehicles

Installation notes and tips

Verify drum size, brake model, and rear position before installation. This kit is listed for multiple brake configurations, so match the vehicle year, make, model, and notes carefully, especially on 11-inch brake systems and 462, 363, 364, 365, or 652 applications. For best results, inspect related drum brake hardware, including shoes, wheel cylinder link components, and adjusting screw assemblies, during service.

Quality assurance

Carlson manufactures brake service parts for repair and replacement applications. H439 is built for use in supported rear drum brake systems where proper spring tension and hardware function are required.