Wilwood 140-14840 Forged Narrow Superlite Front Hub Brake Kit - FNSL6R 6R 12.88

The Wilwood 140-14840 FNSL6R Forged Narrow Superlite 6R Front Hub Brake Kit is a complete big brake conversion engineered for 1968–1972 Ford F100 trucks running traditional OEM spindles. Featuring a 12.88" diameter one-piece rotor and a billet forged six-piston caliper with a radial mount design, this kit delivers a significant upgrade in stopping power and visual impact over stock drum or single-piston disc setups.

Key Features:

• Forged Narrow Superlite 6R (FNSL6R) caliper — billet forged aluminum body with six pistons for maximum clamping force and fade resistance
• 12.88" diameter rotor — one-piece iron rotor and hat assembly sized for serious street and track performance
• Radial caliper mount — provides superior rigidity and more precise brake feel compared to lug-style mounts
• Engineered for OEM truck spindles — designed specifically for traditional (non-ABS) factory spindles on classic American trucks
• Requires 17" or larger wheels — purpose-built for custom builds with upgraded wheel and tire packages
• Multiple caliper finish and rotor style options available across the FNSL6R kit line to match any build aesthetic
• Optimized for custom show trucks, high-performance street builds, and dual-purpose street/track machines

The Wilwood FNSL6R series is purpose-built for enthusiasts who demand both performance and style. The six-piston forged caliper paired with the 12.88" rotor provides the braking capacity to complement suspension and tire upgrades commonly found on modified classic trucks. Available caliper finishes and rotor designs allow builders to tailor the look to their specific build.