Our 1967-72 Chevy and GMC truck power brake booster kit is designed with the LS engine conversion in mind. These bolt on kits give the clearance required when swapping in an GM LS engine. Our kit mounts 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.