I'm ready to change the manual brakes to power with an after market brake booster/master cylinder kit, all i can find are 1/2 and 3/4 ton kits, i have a 59 3800, do all 54-59 3/4 and ton trucks have the same stock brake master cylinders? If so a 3/4 ton after market booster/master cylinder should fit. The kits use 7" boosters with corvette master cylinders. Also does anyone know what the stock size is of the wheel cylinders on the front and back wheels? And are the brake shoe's the same size on the front and back? I have been having a hard time finding these parts at the local flaps so any part numbers would really help