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Product details
The red GT version of Wilwood's Magnum Force front kit combines Superlite 6R calipers with 12.88-inch slotted one-piece rotors. New hubs, bearing components, BP-10 pads and mounting hardware are included. The package is specific to the documented drop spindle and is not a universal front-brake set for any chassis carrying that brand's suspension. 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. Its product range serves motorsport, street-performance, and specialized applications, with individual components selected to match the requirements of the complete brake system.
Technical Details
- Manufacturer part number: 140-12272-R
- Type: Forged Narrow Superlite 6R Big Brake Front Brake Kit (Hub and 1PC Rotor)
- Calipers: Forged Narrow Superlite 6R; 6 pistons per caliper; Red Powder Coat; radial mounting.
- Piston bores: 1.62, 1.12, 1.12 inches; Stainless pistons. Included pad compound: BP-10.
- Rotors: 12.88-inch diameter × 1.10-inch width; GT Slotted; Iron; Black Electro Coat finish.
- Replacement hubs: Hub - Hat Mount; Aluminum; Bare. Bearings and hub hardware are specified in the installation instructions.
- Wheel bolt circles: 5 x 4.50; 5 x 4.75 inches.
- Included: paired calipers, pads, rotors, brackets and assembly hardware, replacement hubs and bearings.
- Hydraulic flex lines are separate. Master cylinder, booster and spindles are not included; retain or select suitable matching components.
- Conditional minimum wheel diameter: 17 inches. Verify the complete clearance drawing for barrel and spoke offset before purchase.
Fitment & Compatibility
Confirm the exact upright and hub-bearing arrangement using DS866. Match the wheel lug pattern before assembling the rotor/hub units, then establish caliper centering and free rotation. Select brake hoses and chassis fittings separately, allowing for steering lock and suspension travel. Wheel diameter is a conditional 17-inch minimum, with spoke depth and barrel shape needing the complete drawing check. Inspect the completed installation for interference and leaks before bedding the pads.
Wilwood installation documents: Installation instructions.
PMB Performance has over 20 years of brake-system experience. Contact us with your vehicle, axle or spindle details and wheel measurements 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.
