GM Caliper Metric RH 1978-87 D154 Series

The GM Caliper Metric RH 1978-87 D154 Series from ALLSTAR PERFORMANCE is a right-hand passenger-side brake caliper engineered for classic and performance GM vehicles spanning the late 1970s through mid-1980s. Built for drivers and mechanics restoring or upgrading aging brake systems, this single-piston caliper delivers the stopping power and durability required for street, show, and light track use. As a direct metric replacement for original GM hardware, it addresses the wear and corrosion that compromises factory brake performance over decades of service.

This cast-iron caliper features a 2.375-inch bore diameter and is designed to accommodate rotors up to 1.000 inch thick, making it compatible with both stock and upgraded disc brake setups common in period restorations. The floating mount design with a 5.460-inch mounting span ensures proper pad alignment and consistent brake bias across the vehicle's front or rear circuit. Cast-iron construction provides excellent heat dissipation critical during sustained braking, while the natural finish resists corrosion when properly maintained with standard brake fluid and periodic inspection.

Restorers and weekend warriors will find this right-hand caliper essential when rebuilding dual-circuit brake systems on Chevrolet, Pontiac, Oldsmobile, and Buick models from 1978 through 1987. Installation requires verification of rotor thickness, caliper mounting surface condition, and brake line routing to prevent kinking. Pair with quality brake pads, stainless steel hardware, and fresh DOT-approved fluid for reliable, fade-resistant stopping performance that meets modern safety expectations while maintaining authentic appearance.