Sounds like you're talking rear, in any case, I converted my front to disk, here's a pic of the kit
http://www.americanclassic.com/images/BR3552.jpg but it was a bit cheaper here.....
http://www.classicperform.com/Store/...s/4759DBK5.htm
I used rotors and calipers from a 74 El Camino, worked fine (so far) haven't got it on the road yet.