Wilwood Forged Narrow Superlite 4R Front Brake System - 4 Piston Caliper - 12.190 in Drilled / Slotted Rotor - Black Powder Coat - GM SUV / Truck 1963-87 39000509 3 in Drive Shaft Diameter

3 in Drive Shaft Diameter

125-300 lb/in Spring Rate

or others that have been decked

437 in Spring

2014-2017 Audi SQ5

Wilwood Forged Narrow Superlite 4R Front Brake System - 4 Piston Caliper - 12.190 in Drilled / Slotted Rotor - Black Powder Coat - GM SUV / Truck 1963-87 39000509 3 in Drive Shaft DiameterThe unsurpassed braking capacity of the Forged Narrow Superlite 4R four piston caliper serves as the base of this 12. 19" big rotor kit for the popular 1963 thru 1987 Chevrolet & GM C10 C15 Trucks with Wilwood's new Modular Drop Pro Spindles. SL4 kits are engineered application specific for simplified installation and full compatibility with OE master cylinder output and ABS functions where used. Big brake kits provide increased brake capacity and