New master cylinder for the Mercury Cougar or Ford Mustang equipped 4 wheel power disc brakes. This unit can be used with the Bendix and Midland boosters.
Bore size: 1"
Do not attempt to use a 1970 booster on a 1967-69 Cougar as failure will occur within minutes!
Never bleed your brakes on a power brake car with the car running. The pedal will over extend the rod into the booster and break internal parts. This is not covered under warranty.