Forged Narrow Superlite 4R Big Brake Rear Parking Brake Kit, Big Ford New Style Flange, 2.50" Offset, 14" Rotor Dia., 18" Min. Wheel Dia., 5 x 4.5/4.75/5.0" Bolt Circle, 0.52" Wheel Stud Dia., SRP Rotors, Black Calipers|Wilwood Forged Narrow Superlite 4R Big Brake Rear Parking Brake Kit.