Complete Mopar Front and Rear MBM Disc Brake Conversion Kit with OE Style Booster, Master Cylinder and Proportioning Valve. Kit includes a Mopar Bendix style trapezoid nose booster, 4 stud 1" bore master cylinder and frame mount proportioning valve. Front kit features 11" rotors, forged steel spindles, loaded calipers, caliper brackets, brake lines and hardware. Rear kit includes 11" rotors, loaded emergency brake calipers, caliper brackets, brake lines and all hardware. This kit is designed for 70-74 B&E-Body cars with 8-3/4" rear ends. It is best to call before ordering to ensure that we set up the right kit for your application.