Amazon.com: Wilwood 140-15941-DR SL6R 13" Front Big Brake Kit With Red Calipers and Drilled Rotors for 1963-87 GM C10/C15 With Wilwood Drop Spindle : Automotive
GM 63-87 C10 FRONT 16" Big Brake Kit (for Wilwood Aluminum ProSpindles) - Little Shop Mfg
Wilwood Disc Brake kits, both Front and Rear Pro Series with the internal Park Brake, 12.19" rotors, 4 piston calipers | Dutchman Axles
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73-87 Chevy C10 GMC CPP Modular Drop Spindle Wilwood 6 Piston 14" Big Brake Kit | eBay
1973-87 Chevy, GMC Truck Hydro Power Brake Boost Kit with Bright Wilwood Master Cylinder