Our 1967-72 Chevy and GMC truck power brake booster kits will help your truck stop better than ever! These bolt on kits mount to the original master cylinder-power booster mounting studs found on the firewall, and use the factory pedal assembly. Exclusive bracket design is much stronger than OE brackets. Made of .188″ thick 1018 mild steel minimizes flex in booster assembly and eliminates metal fatigue found on the OEM brackets