Wilwood 140-18152 FNSL4R Rear Electronic Parking Brake Big Brake Kit - Big Ford New Style 2.50" Offset, 12.88" Rotor, 6-Lug

The Wilwood 140-18152 Forged Narrow Superlite 4R (FNSL4R) Rear Electronic Parking Brake Kit delivers a complete big brake upgrade solution for popular Big Ford rear axles with a New Style 2.50" offset and 6-lug bolt pattern. Designed for custom builds, high-performance street machines, and show cars that demand both superior stopping power and a clean, cable-free parking brake system.

Key Features:

• Forged Narrow Superlite 4R (FNSL4R) four-piston calipers deliver optimized clamping force and balanced braking performance
• 12.88" two-piece rotor designed for the Big Ford New Style axle with 2.50" offset and 6-lug configuration
• BP-10 high-performance brake pads provide consistent friction and fade resistance suited for street and performance driving
• Electronic Parking Brake (EPB) caliper delivers high static holding torque for secure parking — no mechanical cabling required
• Includes control unit and wiring harness assembly for a simplified, straightforward installation
• Compatible with Big Ford rear axle applications using the New Style 2.50" offset flange
• Available in optional caliper finishes and rotor designs to match your build's style and performance needs

This kit is engineered to complement front big brake upgrades, providing a balanced and well-matched brake system across the full vehicle. The elimination of traditional parking brake cables reduces complexity while the integrated electronic control unit streamlines installation. Ideal for muscle car restorations, pro-touring builds, and custom street machines demanding race-inspired rear brake hardware.