At last a true bolt on front and rear power disc brake system for your 1966-70Chevy Fullsize car. These kits include all items shown in picture. Standard booster size is 11″ but you can choose from many different sizes. You can also choose braided stainless hoses and/or drilled and slotted rotors for a minimal upgrade charge! Great for small rim and tire combos! Lower the front of you classic 2″ with included drop spindles. These kits come standard with GM ratcheting rear calipers. Works with most aftermarket14″ wheels