Weld-On 1978-88 GM Metric Caliper Bracket
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Q & A
What's in the Box
Mounts 1978-1988 GM front caliper to any 3" tube rear end using 11-3/4" diameter rotors. Fully machined steel with punched lightening holes. Measures approximately 5-1/2" between mounting holes.
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These caliper brackets mount flat and must be welded onto your 3" diameter axle tube. Designed to mount a 1978-1988 GM metric car front caliper for use with an 11.75" diameter rotor. Brackets are 1/4" thick.
Caliper bracket slides over 3" axle tube and clamps on. Must be tack welded to keep from rotating.
1978 and up metric calipers measure approximately 5-1/2" between mounting holes.
Every Wilwood brake rotor is cast from premium grade, long grain carbon iron. This material exhibits long wear, high thermal stability, and excellent resistance to distortion in high heat. Modern foundry and machining techniques hold close tolerances on face and vane thickness. Combining the correct face thickness with a 32 vane casting provides superior heat management and long service life with low rotating and unsprung weight. The straight vane design also makes it possible to use the same rotor on left or right hand mounting locations.
Use Speedway brake pad spacers with .810" rotors and stock-style 1978-1988 GM calipers. Spaces brake pad out .242" from caliper piston.
Note: Spacer has an o/d of 2.05" and as such is specific to a piston with an inside diameter to match the 2.05" spec. Please check caliper piston application and dimensions when purchasing.
The overall length of these slide bolts is 4-3/8". The underhead length is 3-3/8". The thread on the bolts is 7/16-20 (US fine).