All right, I might be giving away some of my secrets here! Keep the 5 lug kit. Save your money. It is based on the mid sized Chevy. I usually use the Camaro for reference. Now, when I converted my early 70's Chevelle rear axle ( 5 on 4 3/4"), I went with the '78 Cadillac Seville rear backing plates and calipers. Problem with using the Cadillac system is the the rotors are 6 lug. GM doing what GM does, and a 10 bolt axle being a 10 bolt axle, I looked to the five lug versions of similar years. Lo and behold, the 1979 Pontiac Trans Am has the exact same rotor only 5 on 4 3/4". Same offset, diamter and everything! Rear brake conversion done!
So, since I have and keep all those old brake books, I can look up and see if there is an application that will work. If you'd like. Let me know. We're dealing with the typical 5 lug kit, yes? 5 on 4 3/4". 11.125 diameter. Say, 1971 to 1976 Camaro?
