[woodyjeff]

The master cylinder and prop valve are the same for with or without power brakes. I just added power brakes a couple of months ago and it was real easy. Just make sure you get all the pieces like the rod that attaches to the peddle arm inside the truck and there is a plunger with rubber seal on it that should be sticking out the front of the booster that you will need, it is what pushes into the master cylinder. I used my old master cylinder and prop valve and it works great. The only problem is there is a wire extension that goes with the power breaks to go to the prop valve for the brake light and I can't seem to find one of these. You could hook up any wire to extend it but I'm looking for a plug that looks origanal.