Wilwood Front Red GT Slotted Hub Conversion, Chevrolet/GMC CPP Drop-Spindle Trucks (1963–1987), 13.06-Inch

SKU: 140-10775-R

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Product details

Red Superlite calipers and GT slotted 13.06-inch rotors distinguish this Wilwood front truck conversion. Replacement hubs and separate hats are configured for the identified CPP drop spindle. The supplied brake components do not convert a different spindle into that mounting pattern. Wilwood Engineering was founded by Bill Wood in 1977 and is based in Camarillo, California. The company designs and manufactures disc brake systems and components, including calipers, brake rotors, master cylinders, valves, fittings, and brake lines for motorsport, street-performance, and specialized applications.

Technical Details

  • Manufacturer part number: 140-10775-R
  • Type: Forged Narrow Superlite 6R Big Brake Front Brake Kit (Hub)
  • Calipers: Forged Narrow Superlite 6R; 6 pistons; Red Powder Coat.
  • Bores: 1.75, 1.25, 1.25 inches. Pads: BP-10.
  • Rotors: 13.06-inch diameter × 1.25-inch width; GT Slotted, Spec-37 Iron, Black Electro Coat. 48 curved vanes.
  • Hubs: Hub - Hat Mount; Aluminum; Bare.
  • Wheel bolt circles: 5 x 4.75; 5 x 5.00 inches.
  • Included: paired calipers, pads, rotors, brackets and assembly hardware, replacement hubs, rotor hats.
  • Not included: hydraulic lines, master cylinder, booster or spindles. Reuse suitable matching components.
  • Conditional wheel minimum: 17 inches. Check the clearance drawing for barrel and spoke offset.

Fitment & Compatibility

Identify the actual CPP drop spindle before selecting the brake package. DS648 distinguishes CP30106-2, -3 and -4 by the original truck production configuration, while the kit's wheel hubs remain a five-lug arrangement. The Ridetech rows preserved below do not resolve the CPP-only mounting statement and need confirmation. This GT version uses a 13.06-inch friction ring, with a different wheel envelope from the larger rotor option. Compare the exact template, inspect bearing engagement and arrange hydraulic hoses for full steering and suspension travel.

Match the individual model, year, submodel and brake configuration in the fitment table below.

PMB Performance has over 20 years of brake-system experience. Contact us with the vehicle and installed hardware details for fitment help.

California Proposition 65 warning — brake pads only: WARNING: This product can expose you to chemicals including Arsenic, Cadmium, Chromium (Hexavalent compounds), Lead, Nickel, Cobalt and Antimony Trioxide which are known to the State of California to cause cancer or other reproductive harm. For more information go to www.p65warnings.ca.gov.

Years Make Model Model option Front brakes Rear brakes Kit application Notes
1963-1967 Chevrolet C10 Panel Vehicles using CPP 2" Drop Spindle Drop Drum Front Kit 1, 2, 3, 4
1963-1967 Chevrolet C10 Panel Vehicles using Ridetech Drop Spindle Drop Drum Front Kit 1, 2, 3, 4
1963-1974 Chevrolet C10 Pickup Vehicles using CPP 2" Drop Spindle Drop Drum Front Kit 1, 2, 3, 4
1963-1974 Chevrolet C10 Pickup Vehicles using Ridetech Drop Spindle Drop Drum Front Kit 1, 2, 3, 4
1963-1966 Chevrolet Suburban Vehicles using CPP 2" Drop Spindle Drop Drum Front Kit 1, 2, 3, 4
1963-1966 Chevrolet Suburban Vehicles using Ridetech Drop Spindle Drop Drum Front Kit 1, 2, 3, 4
1963-1965 GMC 1000 Series Vehicles using CPP 2" Drop Spindle Drop Drum Front Kit 1, 2, 3, 4
1963-1965 GMC 1000 Series Vehicles using Ridetech Drop Spindle Drop Drum Front Kit 1, 2, 3, 4
1963-1966 GMC Suburban Vehicles using CPP 2" Drop Spindle Drop Drum Front Kit 1, 2, 3, 4
1963-1966 GMC Suburban Vehicles using Ridetech Drop Spindle Drop Drum Front Kit 1, 2, 3, 4
1965, 1967, 1969 Chevrolet C10 Pickup w/ Ridetech Drop Spindle Drop Drum Front Kit 1, 5, 2, 3, 4
1966 GMC 1000 Vehicles using CPP 2" Drop Spindle Drop Drum Front Kit 1, 2, 3, 4
1966 GMC 1000 Vehicles using Ridetech Drop Spindle Drop Drum Front Kit 1, 2, 3, 4
1967-1986 Chevrolet C10 Suburban Vehicles using CPP 2" Drop Spindle Drop Drum Front Kit 1, 2, 3, 4
1967-1986 Chevrolet C10 Suburban Vehicles using Ridetech Drop Spindle Drop Drum Front Kit 1, 2, 3, 4
1967-1974 GMC C15/C1500 Suburban Vehicles using CPP 2" Drop Spindle Drop Drum Front Kit 1, 2, 3, 4
1967-1974 GMC C15/C1500 Suburban Vehicles using Ridetech Drop Spindle Drop Drum Front Kit 1, 2, 3, 4
1967-1974, 1979-1986 GMC C1500 Pickup Vehicles using CPP 2" Drop Spindle Drop Drum Front Kit 1, 2, 3, 4
1967-1974, 1979-1986 GMC C1500 Pickup Vehicles using Ridetech Drop Spindle Drop Drum Front Kit 1, 2, 3, 4
1970-1974 Chevrolet Blazer Vehicles using CPP 2" Drop Spindle Drop Drum Front Kit 1, 2, 3, 4
1970-1974 Chevrolet Blazer Vehicles using Ridetech Drop Spindle Drop Drum Front Kit 1, 2, 3, 4
1970-1982 GMC Jimmy Vehicles using CPP 2" Drop Spindle Drop Drum Front Kit 1, 2, 3, 4
1970-1982 GMC Jimmy Vehicles using Ridetech Drop Spindle Drop Drum Front Kit 1, 2, 3, 4
1975-1986 Chevrolet C10 Vehicles using CPP 2" Drop Spindle Drop Drum Front Kit 1, 2, 3, 4
1975-1986 Chevrolet C10 w/ Ridetech Drop Spindle Drop Drum Front Kit 1, 5, 2, 3, 4
1975-1982 Chevrolet K5 Blazer Vehicles using CPP 2" Drop Spindle Drop Drum Front Kit 1, 2, 3, 4
1975-1982 Chevrolet K5 Blazer Vehicles using Ridetech Drop Spindle Drop Drum Front Kit 1, 2, 3, 4
1975-1978 GMC C15 Vehicles using CPP 2" Drop Spindle Drop Drum Front Kit 1, 2, 3, 4
1975-1978 GMC C15 Vehicles using Ridetech Drop Spindle Drop Drum Front Kit 1, 2, 3, 4
1975-1978 GMC C15 Suburban Vehicles using CPP 2" Drop Spindle Drop Drum Front Kit 1, 2, 3, 4
1979-1986 GMC C1500 Suburban Vehicles using CPP 2" Drop Spindle Drop Drum Front Kit 1, 2, 3, 4
1979-1986 GMC C1500 Suburban Vehicles using Ridetech Drop Spindle Drop Drum Front Kit 1, 2, 3, 4
1987 Chevrolet R10 Pickup Vehicles using CPP 2" Drop Spindle Drop Drum Front Kit 1, 2, 3, 4
1987 Chevrolet R10 Pickup w/ Ridetech Drop Spindle Drop Drum Front Kit 1, 5, 2, 3, 4
1987 Chevrolet R10 Suburban Vehicles using CPP 2" Drop Spindle Drop Drum Front Kit 1, 2, 3, 4
1987 Chevrolet R10 Suburban Vehicles using Ridetech Drop Spindle Drop Drum Front Kit 1, 2, 3, 4
1987 GMC R1500 Pickup Vehicles using CPP 2" Drop Spindle Drop Drum Front Kit 1, 2, 3, 4
1987 GMC R1500 Pickup Vehicles using Ridetech Drop Spindle Drop Drum Front Kit 1, 2, 3, 4