Wilwood 140-13665-DR Forged Narrow Superlite 4R Rear Disc Brake Kit

The Wilwood 140-13665-DR Forged Narrow Superlite 4R rear disc brake kit delivers a comprehensive big brake upgrade specifically engineered for 1976-1977 Ford Bronco rear axles with Big Ford New Style flange and bearing configurations. This complete kit replaces OE 11-inch diameter drum brakes on 3300 GVW axles with a modern, high-performance disc brake system.

Key Features:

• Forged Narrow Superlite 4R (FNSL4R) four-piston calipers for superior clamping force and heat dissipation
• 13-inch or 14-inch two-piece vented rotors for enhanced cooling and reduced unsprung weight
• High-performance BP-10 compound brake pads optimized for balanced braking performance
• Integrated drum-style parking brake assembly with internal shoe system for clean installation
• Superior static holding power for parking on inclines
• Available in optional caliper finishes and rotor designs for custom styling

This rear brake kit is designed to complement Wilwood front big brake upgrades for the Bronco platform, providing optimized and balanced braking performance across the entire vehicle. The neatly concealed internal parking brake mechanism maintains a clean, professional appearance while delivering reliable parking function. Perfect for builders seeking both enhanced stopping power and personalized aesthetics for their classic Bronco restoration or performance build.