Wilwood Rear Red Four-Piston Brake Kit, 12.88-Inch Drilled Rotors & Parking Shoes, Chevrolet / GMC C1500 (1988–1998)

The 12.88 × 1.10-inch srp drilled & slotted rotors define this Superlite 4R rear brake package for Chevrolet / GMC C1500 (1988–1998). Wilwood supplies red 4-piston calipers for the specified installation, with the rotor width and mounting hardware selected as a system. Founded in 1977 by Bill Wood, Camarillo, California-based Wilwood Engineering designs and manufactures disc-brake systems and components. Calipers, brake rotors, master cylinders, valves, fittings and brake lines support motorsport, street-performance and specialized uses, with each component chosen in relation to the complete brake system.

Technical Details

• Manufacturer part number: 140-17542-DR; supplied as an axle kit.
• Hydraulic sizing: cataloged bore sizes 1.12, 1.12 inches; piston area 1.98 square inches; inlet 1/8-27 NPT.
• Supplied friction pads: BP-10 compound; match operating conditions to the intended use.
• Wheel envelope: 17-inch minimum nominal wheel diameter; verify the entire wheel-clearance drawing, including spoke and barrel shape.
• Housing-flange requirement: 88-98 C1500 flange; 3.25-inch axle offset, measured using the manufacturer worksheet.
• Hardware and retained components: Mounting hardware supplied; existing wheel hubs retained; spindles, master cylinder and brake booster are not included.
• Parking brake: Internal shoe parking brake supplied; modify the original cable with included cable-end adapter kit 330-17540.
• Service calipers: Forged Narrow Superlite 4R; 4 pistons per caliper; Red Powder Coat; radial mounting; stainless pistons.
• Rotor specification: Material: Spec-37 Iron; Type: SRP Drilled Rotor; Style: SRP Drilled & Slotted; Surface Finish: Black Electro Coat.
• Brake rotor size: 12.88-inch outside diameter × 1.10-inch thickness; vented friction section.
• Rotor hats: Aluminum parking brake hat - standard; Black E-Coat; hat offset 1.950 inches. Hat offset is distinct from axle offset.
• Rotor/hat mounting-hole pattern: 5 x 5 in; 5 x 127 mm; cataloged hole clearances 0.580 in; 14.73 mm. These are rotor or hat drillings, not replacement wheel studs. The retained hub or axle determines the vehicle wheel pattern.
• Hydraulic lines: Hydraulic flexlines and fittings are not included; select compatible lines for the complete installation.

Fitment & Compatibility

DS1564 specifies the five-lug C1500 rear axle and 3.25-inch axle offset. Confirm the Chevrolet or GMC C1500 row below, the flange register and at least the documented 17-inch wheel envelope. The internal parking brake requires modifying the OE cable with the included cable-end kit; routing and adjustment are part of installation. A six-lug or four-wheel-drive axle is not established by a general C1500 year range. Use the fitment table below to check the complete application and option notes.

PMB Performance has over 20 years of parts experience. Share the VIN and any changes to the axle, upright or wheels before ordering if the brake configuration is uncertain.

Review Installation instructions, Technical bulletin for the complete installation and clearance requirements.

Manufacturer Warning

Applicable to 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.