Description
The Wilwood Narrow Superlite 6R Front Brake Kit (part number 140-12307-D) is configured with Black Powder Coat Calipers. Application: Heidts Tri -5 2 in Drop Spindle.
The radial-mount caliper arrangement uses a dedicated bracket to establish caliper position over the rotor. Bracket geometry and rotor offset are therefore part of the fitment specification. The rotor configuration and caliper finish shown here identify this specific part number. Match the required axle, spindle, mounting arrangement, and any listed offset to the vehicle’s installed components.
Technical details
- Selected configuration: Black Powder Coat Calipers.
- Application: Heidts Tri -5 2 in Drop Spindle.
- Configuration: 12.88 in Drilled & Slotted Rotors / Hub Kit.
- Caliper series: Forged Narrow Superlite 6R.
- Pistons per caliper: 6.
- Piston material: Stainless.
- Caliper mounting: Radial.
- Pad shape: 7416.
- Pad compound: BP-10.
- Listed piston bore sizes: 1.62 / 1.12 / 1.12 in.
- Caliper finish: Black Powder Coat.
- Rotor material: Spec-37 Iron.
- Rotor surface finish: Black Electro Coat.
- Rotor dimensions: 12.88 in diameter × 1.10 in thickness.
- Caliper mounting arrangement: Radial.
Cataloged vehicle applications
- 1955-1957 Chevrolet Bel Air — Base
- 1955-1956 Chevrolet Bel Air — Beauville
Selection and installation: Wilwood lists a potential minimum wheel diameter of 17 inches. Actual clearance depends on wheel barrel and spoke shape; verify the wheel-clearance dimensions for this kit.