Check the listing for details. A-Body 8" Disc Drum Power Booster Smooth Master Cylinder & Bracket Kit CHROME. Condition: New. Listed at 157.40 USD. A-Body 8" Disc Drum Power Booster Smooth Master Cylinder & Bracket Kit CHROMEVehicle Compatibility:1964-72 Chevelle, GTO, 442, Lemans, Cutlass, Caprice, Skylark, Monte Carlo, El Camino etc.1967-1978 Chevy Camaro1967-1969 Pontiac Firebird. 1968-1974 Chevy Nova. Pontiac Ventura 1969-1972 Pontiac Grand Prix Description:Chrome 8" DUAL brake booster with CHROME Smooth Top Master Cylinder, This 8" booster is ideal for most small to mid size street rods and customs. The booster mounts with a 4-bolt pattern. The 4 bolts are in a perfect square and are 3 3/8" apart (center to center). The master cylinder is 1" bore and the ports measure 9/16" and 1/2" on each side. CHROME Disc/Drum Proportioning Valve .This high quality Proportioning Valve has will really improve your brake performance.Master Cylinder Brake Line KitBrake Pedal Pushrod Kit Firewall Mounting Brackets (3/16"Thick,Heavy Duty) - ZincPackage:GM Chrome Aluminum Brake Master Cylinder Smooth Top 1" Bore 8" CHROME Dual Booster Chrome Disc/Drum proportioning valve KitBrake Pedal Pushrod Kit Firewall Mounting BracketsAs shown in our picturesTHIS KIT IS FOR DISC/DRUM APPLICATIONS ONLY! Professional Installation is Highly Recommended (No Instruction Included)