Wilwood 14-Inch SRP Rear Brake Conversion for Chevrolet and GMC C1500 Pickup, Black AERO4 Calipers (1988–1998)

Drilled and slotted rear rotors fit the specified Chevrolet and GMC C1500 Pickup axle. Black AERO4 calipers require separate hydraulic flexlines. The conversion combines the caliper, pad and rotor configuration specified for this axle and mounting arrangement. Founded by Bill Wood in 1977, Wilwood Engineering 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. Its motorsport, street-performance and specialized applications require individual components matched to the complete brake system.

Technical Details

• Manufacturer identification: 140-17673-D
• Application and supplied quantity: rear conversion kit; Sold as a kit.
• Hydraulic service-caliper specification: AERO4; 4 pistons per caliper; Black Powder Coat
• Caliper attachment: Radial
• Brake pads supplied: BP-10
• Piston type: Stainless
• Service-caliper port: 1/8-27 NPT
• Rotor assembly specification: 14.00 × 1.10 inches; Spec-37 Iron; SRP Drilled & Slotted
• Wheel envelope: 18 in; the complete wheel-clearance drawing determines fit
• Rear housing interface: 88-98 C1500; measured axle offset 3.25 in
• Rotor hat bolt-circle specification: 5 x 5.00 inches; this does not change the retained hub or axle wheel pattern
• Hydraulic hose selection: Not included; supply suitable hoses and fittings separately
• Hardware provision: Included; verify the installed fastener engagement
• Not included: spindles, wheel hubs, master cylinder or brake booster
• Parking system: Internal shoe parking brake; cable connection must be configured for the vehicle

Fitment & Compatibility

Applies to the listed 1988–1998 Chevrolet and GMC C1500 Pickup five-lug, two-wheel-drive axle configurations with a measured 3.25-inch offset. The table below distinguishes the early front-brake/chassis options and later five-lug versions; an Iron ProSpindle entry does not replace the rear-axle checks. Compare axle-flange registration, housing ends and wheel clearance before ordering. The factory parking cable must be modified using the included cable-end adapter kit. Hydraulic flexlines are separate, and the original rubber hoses do not adapt directly to these calipers.

Wilwood product specifications · Wilwood installation and compatibility information · Axle measurement worksheet · Wilwood installation and compatibility information

Before purchase, send PMB Performance the actual housing flange, axle offset, rotor registration and parking or hydraulic arrangement. Our over 20 years of parts and fitment experience helps identify the installation details that need to be checked.

Manufacturer warning — brake pads only: WARNING: Cancer and Reproductive Harm. www.P65Warnings.ca.gov.