I bought the disc brake adapter kit from Jim Carter, the one without rotors or calipers. They told me to use 70-77 camero/firebird or 73-76 chevelle or monty carlo rotors. the inner bearings won't work (to small) on any of them. Has anybody used these kits and if you have what rotors did you use or what did you do to make them work. FYI I have called and talk to Jim Carter and the front end is all original except for disc brakes (maybe)

1938 Gmc 1/2 ton