Wilwood 140-13323-DR Forged Narrow Superlite 4R Rear Disc Brake Kit

The Wilwood 140-13323-DR Forged Narrow Superlite 4R rear disc brake kit delivers a complete Big Brake upgrade solution specifically engineered for 1965-1977 Ford Bronco rear axles with Big Ford flange and bearing configurations. This kit replaces OE 11-inch diameter brakes on axles rated to 3,300 lbs GVW, providing significantly enhanced stopping power and thermal performance.

Key Features:

• Forged Narrow Superlite 4R (FNSL4R) four-piston calipers for increased clamping force and rigidity
• 13-inch or 14-inch two-piece vented rotors for superior heat dissipation
• High-performance BP-10 compound brake pads optimized for balanced braking
• Integrated drum-style parking brake assembly with internal shoe system
• Hidden parking brake design maintains clean, professional appearance
• Superior static holding power for reliable parking on inclines
• Optional caliper finishes and rotor designs available for custom builds
• Designed to complement front big brake upgrades for balanced system performance

This complete rear brake upgrade provides optimized braking balance when paired with Wilwood front big brake kits, making it ideal for lifted Broncos, heavy-duty applications, or performance builds requiring enhanced stopping capability. The internal parking brake mechanism eliminates external cables and hardware for a cleaner installation while maintaining excellent holding power.