8 1/4 or any Sure Grip rear for 66
OOPs! No 8 1/4 there any more. You will love the Cherokee disks, I did them last year and they are great. You need to get another master cyl to push them better, the jeep master works fine just need to get a adapter plate. I did kind of a how to thread on it if you need some info. Use new c clips or shim them since the little bit of play in the axels makes the disks rub in a corner, drove me nuts until I found out what was causing it.