'73 Disc conversion, but keep 4" bolt pattern
I drilled mine out (drilled the head off ) 1/8" center drill and 5/8" drilled to remove head and punch out from the back side so I didn't have to screw with the swedge part on the front of the stud holding on the drum. knocked em out from the back and no distortion of the hub.
It/they fit on the hub. I had mine(the hubs not the rotors) drilled and threaded to fit 1/2' screw in studs to the 5 on 4.5 pattern simply because I didn't want to redrill rotors if I ruined the brakes or hot spotted them. other than that they use the original hub's small register will work for your rims. Just drill the rotors to the small bolt pattern. I wanted the 4.5 rally rims I did order 1/2" x 2" screw in studs just because I wanted them to work on a variety of different rims if I changed my mind.
the track width looked pretty good to me also
I drilled mine out (drilled the head off ) 1/8" center drill and 5/8" drilled to remove head and punch out from the back side so I didn't have to screw with the swedge part on the front of the stud holding on the drum. knocked em out from the back and no distortion of the hub.
It/they fit on the hub. I had mine(the hubs not the rotors) drilled and threaded to fit 1/2' screw in studs to the 5 on 4.5 pattern simply because I didn't want to redrill rotors if I ruined the brakes or hot spotted them. other than that they use the original hub's small register will work for your rims. Just drill the rotors to the small bolt pattern. I wanted the 4.5 rally rims I did order 1/2" x 2" screw in studs just because I wanted them to work on a variety of different rims if I changed my mind.
the track width looked pretty good to me also
