You will need to modify existing brake lines.
1967 1968 1969 Ford Mustang 9 inch BLACK OUT Coated Power Brake Booster 9" Pony
FRONT Brake Shoes Spring Kit Wheel Cylinder fits 1964-1970 Ford Mustang 9 inch
1967-69 FORD MUSTANG 9" CHROME POWER BRAKE BOOSTER MASTER CYLINDER DISC DRUM KIT
1967-70 FORD MUSTANG 9" CHROME POWER BRAKE BOOSTER MASTER CYLINDER DISC DRUM KIT
1967 1968 1969 Ford Mustang 9" Power Brake Booster 1" Bore Master Cylinder NEW
1967-69 Ford Mustang 9" Power Brake Booster w/ Master & Adjustable Prop Valve