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  1. Treb

    Correct Master Cylinder

    Anyone know what is the correct upgrade master cylinder for my 88 GMC K2500 (7200lbs) with 6 lug set up with front disc and rear 11"drum set up. I am still going to keep the rear drum brake setup with the 1 3/16" wheel cylinders and the 3.15 upgrade front calipers. I also going to delete the...
  2. Treb

    Upgrade Front Brake Calipers

    Hi I am new to the forum. I Looking to upgrade my brakes. I have a 88 GMC K2500 with 6 lug wheels..(7200lbs). I have front calipers with the 2.94 diameter piston. Has anyone upgraded to the 3.15 calipers from the 8 lug (8600lbs) calipers. Is this a direct bolt on caliper. The only difference...
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