The 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 complimentary style with wheel, tire, and suspension upgrades. Optional caliper finishes and rotor designs simplify personalizing the style and braking requirements of any application.

This Part Fits:

Year	Make	Model	Submodel
1978-1980	Chevrolet	C10	Big Ten
1975-1981	Chevrolet	C10	Cheyenne
1981-1986	Chevrolet	C10	Custom
1975-1980	Chevrolet	C10	Custom Deluxe
1981	Chevrolet	C10	Deluxe
1975-1986	Chevrolet	C10	Scottsdale
1975-1986	Chevrolet	C10	Silverado
1981-1986	Chevrolet	C10 Suburban	Custom
1975-1980	Chevrolet	C10 Suburban	Custom Deluxe
1981	Chevrolet	C10 Suburban	Deluxe
1975-1980,1982,1984-1986	Chevrolet	C10 Suburban	Scottsdale
1975-1980,1982-1986	Chevrolet	C10 Suburban	Silverado
1987	Chevrolet	R10	Custom Deluxe
1987	Chevrolet	R10	Scottsdale
1987	Chevrolet	R10	Silverado
1987	Chevrolet	R10 Suburban	Custom Deluxe
1987	Chevrolet	R10 Suburban	Scottsdale
1987	Chevrolet	R10 Suburban	Silverado
1975-1978	GMC	C15 Suburban	Base
1975-1978	GMC	C15 Suburban	High Sierra
1975-1978	GMC	C15 Suburban	Sierra Classic
1975-1978	GMC	C15 Suburban	Sierra Grande
1979-1986	GMC	C1500	Base
1979-1980	GMC	C1500	Heavy Half
1979-1986	GMC	C1500	High Sierra
1979-1986	GMC	C1500	Sierra Classic
1979-1982	GMC	C1500	Sierra Grande
1979-1982	GMC	C1500	Street Coupe
1979-1986	GMC	C1500 Suburban	Base
1979-1986	GMC	C1500 Suburban	High Sierra
1979-1986	GMC	C1500 Suburban	Sierra Classic
1979-1982	GMC	C1500 Suburban	Sierra Grande
1975-1984	GMC	Jimmy	Base
1975-1984	GMC	Jimmy	High Sierra
1975-1976,1978-1984	GMC	Jimmy	Sierra Classic
1975-1982	GMC	Jimmy	Sierra Grande
1978-1982	GMC	Jimmy	Street Coupe
1987	GMC	R1500	Base
1987	GMC	R1500	High Sierra
1987	GMC	R1500	Sierra Classic
1987	GMC	R1500 Suburban	Base
1987	GMC	R1500 Suburban	High Sierra
1987	GMC	R1500 Suburban	Sierra Classic