Year: 1967-71 Description: Bendix Disc Brake Master CylinderPiston Stop Screw Application: All Mustang, Shelby, Boss 302 (except Boss 429) Quantity: 1 Jack’s Comments: If you’re rebuilding your original 1967-71 Bendix master cylinder you will have to remove this special piston stop screw to do it.It’s very hard to remove without destroying it cosmetically or functionally.Even early seventies Ford remanufactured units commonly sold as NOS have the wrong screw since Bendix only used this type for a short time.If you’re rebuilding your original master cylinder to concours standards consider really doing it right and replace that hex head with this 100% correct domed headed screw. If you have master cylinder with a fine threaded stop screw you can use our fine threaded version. NOTE: We suggest you don't rebuild your master cylinder yourself. We recommend using a rebuilder that’s familiar with this master cylinder like Sierra Specialties http://www.brakecylinder.com/ . Related Pictures: More Info or Links: See our Factoid section on how to identify an original master cylinder. Boss 429 master cylinders had a fine thread hex headed piston stop screw. Shipping US: Free (US only) Shipping NON-US: Call or email for an exact shipping quote