Rear disk question

Most rear disc brake conversions use GM calipers and pads. U just have to figure out what application to ask for. Sorry I can't remember what mine are. Also be careful, I believe some of these kits require roller bearings and won't work with original style adjustable bearings. And also I think they push the wheels out a hair. Maybe someone else can chime in that knows more than I do. My whole set up was already on the car when I got it.