Wilwood rear Forged Narrow Superlite 4R kit for Strange Engineering Floater 3.49-inch offset: paired red calipers, 12.88-inch slotted rotors and hardware laid out
Wilwood rear Forged Narrow Superlite 4R kit for Strange Engineering Floater 3.49-inch offset: red caliper and 12.88-inch slotted rotor in assembled view
Wilwood rear Forged Narrow Superlite 4R kit for Strange Engineering Floater 3.49-inch offset: paired red calipers, 12.88-inch slotted rotors and hardware laid out
Wilwood rear Forged Narrow Superlite 4R kit for Strange Engineering Floater 3.49-inch offset: red caliper and 12.88-inch slotted rotor in assembled view

Wilwood GT Slotted 12.88-Inch Rear Disc Kit, Red, Strange Floater 3.49-Inch Offset

SKU: 140-12435-R

$2,545.68 Sale
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Product details

This red-caliper Wilwood rear kit is built around 12.88-inch GT slotted rotors and the Strange Engineering floater interface. Four-piston Superlite calipers provide the service-brake function; internal shoes supply the mechanical parking brake. A measured 3.49-inch flange offset is required, so wheel and axle geometry should be confirmed before selecting the assembly. 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: 140-12435-R
  • Type: Forged Narrow Superlite 4R Big Brake Rear Parking Brake Kit
  • Calipers: Forged Narrow Superlite 4R; 4 pistons per caliper; Red Powder Coat.
  • Caliper bore sizes: 1.25, 1.25 inches. Piston type: Stainless.
  • Included pad compound: BP-10.
  • Rotors: 12.88-inch diameter × 1.10-inch thickness; GT Slotted; Spec-37 Iron; Black Electro Coat surface; 48 curved vanes.
  • Rear housing end: Strange Engineering Floater.
  • Required axle flange offset: 3.49 inches.
  • Floater hat mounting pattern: 5 x 5.75 inches.
  • Included: paired calipers, pads, rotors, mounting brackets and assembly hardware, rotor hats, internal parking-brake shoe assemblies.
  • Hydraulic lines and fittings selected separately. No master cylinder, booster or spindles are supplied.
  • Parking-brake cables, clevis hardware and adapters are separate.
  • Conditional wheel screening size: 17 inches. Use the installation clearance diagram to verify the actual barrel and spoke profile.

Fitment & Compatibility

The dimensional checks in DS894 cover the flange pattern, register and rotor position. Verify that the existing floater hub supports the hat mounting, then compare the wheel's barrel and spokes with the complete caliper envelope. Arrange hydraulic lines and parking-cable hardware independently. Cable routing should avoid sharp turns, and the chosen master cylinder must suit the combined front and rear caliper volumes.

Wilwood installation documents: Installation instructions; Technical bulletin.

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

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.