Wilwood Red Six-Piston Superlite Front Conversion for Later GM Truck/Van/SUV Iron ProSpindles, Five-Lug Hubs with 12.19-Inch SRP Rotor Rings (Listed 1988–2002 Applications)

The red/SRP version of this later-GM front kit uses 12.19-inch drilled/slotted rotor rings, separate hats and five-lug aluminum hubs. BP-10 pads accompany the six-piston Superlite calipers. The kit depends on Wilwood's documented one-piece iron Pro Drop spindle rather than the vehicle's original spindle. Match the truck, van or SUV application row and verify the hub bolt pattern and wheel profile before ordering. Bill Wood founded Wilwood Engineering in 1977; the company is based in Camarillo, California. It designs and manufactures calipers, brake rotors, master cylinders, valves, fittings and brake lines for motorsport, street-performance and specialized applications. This kit is one configuration within that disc-brake-system range and must be matched to the vehicle build.

Technical Details

• Manufacturer part number: 140-15948-DR. Quantity: one kit for the stated axle/application.
• Rotor specification: 12.19-inch outside diameter × 1.10-inch thickness; SRP drilled & slotted faces. Iron construction; SRP Drilled Rotor design; published vane configuration: 32 V.
• Service caliper: Forged Narrow Superlite 6R; 6 pistons; stainless piston material. Radial mounting, red powder coat finish.
• Rotor hats: aluminum, black e-coat finish; Big Brake Hat - Short Offset. Hat offset: 1.380 inch.
• Supplied hub assembly: Hub - Hat Mount, aluminum, bare finish.
• Wheel mounting patterns: 5 x 4.75; 5 x 5.00 inches.
• Published piston bores: 1.75, 1.25, 1.25 inches. Supplied pad compound: BP-10.
• Caliper hydraulic inlet: 1/8-27 NPT.
• Brake hoses are not included. Manufacturer line-kit reference(s), sold separately: 220-16439.
• Minimum nominal wheel diameter: 15 inches. The wheel must also clear the actual caliper and rotor profile in the installation drawing.
• Mounting hardware and the specified pads are included. Spindles, master cylinder and brake booster are not supplied.

Fitment & Compatibility

The listed later GM truck, van and SUV applications require the matching Wilwood C10 one-piece iron Pro Drop spindles. Original equipment spindles will not fit. The table has distinct 1988–1998 pickup entries and later SUV/van ranges, with certain van applications extending to 2002; do not apply one overall span to every model. Confirm the correct spindle generation, five-lug wheel interface, full hub seating and clearance around the caliper. Flexible brake lines are ordered separately for the vehicle being built. Use the complete application table below for the individual year, submodel, brake configuration and note attached to each entry.

For fitment assistance, send PMB Performance the vehicle details together with the installed spindle or axle configuration and wheel measurements. We draw on 20+ years of parts and fitment experience to help assess the combination.

Manufacturer documentation: Installation instructions.

Manufacturer Warning

Applicable to brake pads only: Wilwood warns of exposure to arsenic, cadmium, hexavalent chromium compounds, lead, nickel, cobalt and antimony trioxide, chemicals known to California to cause cancer or reproductive harm. More information: P65Warnings.ca.gov.