Ok ,I am running manual brakes up front will be Wilwood Dynalites and out back I have a disc conversion that uses 79-85 El Dorado rear calipers on an 8.5 .I was told that I cannot run those rear brakes if I go manual ...so my question to you is there a manual disc kit for these rears if not who is running rear drum how are they for stopping ......?I think I will convert back to drum if its easier ...