EASY DISC BRAKE CONVERSION FOR 5X 4"

thats what i meant, the 12in (or correctly measured) 11 3/4 cordoba (b body) set up .....right now my car has the 10in drums......this is a more economical conversion. as for mopars in the junk yard...none around here in the northeast! there is nothing in the yards around here except for 1990 and newer cars......they scrap everything around here...........also the gm calipers are 13.00 each......YOU KNOW the 4 piston calipers are not even close in price (100.00 a piece reman) :D