CALIPER GM METRIC 78-87 RIGHT HAND

Allstar's RH 78-87 metric brake calipers, are stock style calipers that are ideal replacements for most GM applications and will fit up to 1 inch wide rotor. Used more and more now on Stockcars. Metric inlet thread is 10mm x 1.5mm pitch. Big GM inlet thread is 7/16 inch-20.use s356-03 adaptor