Wilwood 140-13666-R Forged Narrow Superlite 4R Rear Disc Brake Kit

The Wilwood 140-13666-R Forged Narrow Superlite 4R rear disc brake kit delivers a comprehensive big brake solution specifically engineered for 1976-1977 Ford Bronco rear axles with Big Ford New Style flange and bearing configurations. This kit replaces OE 11-inch diameter brakes on axles with 3300 GVW ratings.

Key Components:

• FNSL4R forged four-piston calipers for maximum clamping force and heat dissipation
• 13-inch or 14-inch two-piece rotors with directional vane design
• BP-10 compound performance brake pads for balanced stopping power
• Integrated drum-style parking brake assembly with internal shoe system
• All necessary brackets, hardware, and mounting components

Performance Features:

• High-efficiency internal parking brake provides superior static holding power
• Clean installation with neatly concealed parking brake mechanism
• Optimized braking balance designed to complement front big brake upgrades
• Available in multiple caliper finishes and rotor designs for custom styling
• Forged billet construction ensures strength and durability under extreme conditions

This kit provides a significant upgrade in braking performance, thermal capacity, and fade resistance compared to stock brake systems, making it ideal for heavy-duty applications, off-road use, or vehicles with increased weight from modifications.