I just installed the CCP front and rear disc brake set-up on my 70 c-10...quick question----They sent me the wrong front calipers. (they sent s-10 calipers) Now I have everything installed but calipers and cant wait a week to get calipers from them. DOES anyone know what calipers I need to look for local?? (CCP told me 73-87 calipers...but I tried and those would not fit over rotors...called CCP again and they told me 73-87 Heavy duty Calipers/for bigger rotors...but Everywhere I call they dont show a Heavy duty listing. PLEASE HELP!! I need to find calipers for the front (bolting up to Western 2.5 drop spindles ASAP.