Product Overview
1978–88 GM Metric G-Body Brake Calipers – IMCA Approved, 7/16"-20
Upgrade or replace your braking system with these high-quality GM Metric G-Body Brake Calipers, designed as a direct replacement for 1978–1988 GM mid-size vehicles. Built with all-new components, these calipers eliminate the need for core returns and ensure consistent, reliable performance without the risk of reused or worn parts.
Featuring a 2.375" single piston, these calipers deliver dependable stopping power and are IMCA approved, making them a trusted choice for racers competing under IMCA rules. The 7/16"-20 fluid inlet provides flexibility, allowing compatibility with a wide range of brake line adapters and banjo fittings.
With a standard 5-1/2" mounting bolt spacing, these calipers are also highly versatile—perfect for use in rear disc brake conversions and compatible with many common caliper brackets.
Key Features:
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Direct replacement for 1978–1988 GM Metric G-Body vehicles
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All-new construction – no core charge or reused parts
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2.375" single piston for reliable braking performance
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IMCA approved for racing applications
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7/16"-20 fluid inlet for versatile brake line options
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5-1/2" mounting bolt spacing fits many brackets and conversions
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Ideal for stock replacement or performance builds
Whether you're refreshing a stock setup or building a race-ready car, these GM Metric calipers offer dependable performance, easy compatibility, and race-proven reliability.
