67 disc brakes

[bubba17]

ok...got alot of flack and recomendations about what i have goin on with my brake spindle set up. i have drop spindles from McGaughy for a 63 to 70 c10. i have brake rotors from like a 94ish 2500 van...same as the 2500 pick up, same dimensionaly as the h.d. 5 lug spindles...i messured. the rotors fit the spindles perfect. bearings, seals, everything...the problem is the calipers. are the previouse gen h.d. calipers diffrent? like i said, the ROTORS are fine, calipers are the issue. bolt holes on the calipers dont even come close on the spindles. any help is good