Industrial H2644 Drum Brake Self Adjuster Repair Kit

Carlson H2644 Drum Brake Self-Adjuster Repair Kit restores the self-adjusting mechanism in rear drum brake assemblies by replacing worn self-adjuster components to maintain automatic adjustment as the drum brake linings wear. Designed for rear installation on either side—rear left or rear right—this kit covers both positions on compatible GM drum brake systems. Catalog listings identify Carlson H2644 as compatible with Buick, Chevrolet, and Pontiac rear drum brake applications. Marketed as an OE‑quality repair option, the H2644 provides a direct replacement for the original self‑adjuster hardware, supporting reliable adjustment and consistent braking performance at the rear axle. Used by professional shops and DIY enthusiasts for GM rear drum brake maintenance, this Carlson part helps renew the self‑adjusting function and restore braking reliability on the rear drums.