Wilwood 140-17658 Forged Narrow Superlite Rear Disc Brake Kit with Parking Brake - 4R

The Wilwood 140-17658 Forged Narrow Superlite 4R rear disc brake kit delivers a complete big brake solution for muscle car rear axles requiring integrated parking brake functionality. This professional-grade kit combines high-performance braking components with a clean, integrated design ideal for custom builds, show vehicles, and high-performance street applications.

Key Components:

• Forged Narrow Superlite 4R (FNSL4R) four-piston calipers for powerful, consistent clamping force
• Choice of 13-inch or 14-inch two-piece vented rotors for superior heat dissipation
• High-performance BP-10 compound brake pads optimized for street and performance use
• Internal drum-style parking brake mechanism for static holding power
• Available in multiple caliper finish options for custom appearance

Design Features:

• Hidden internal shoe parking brake system maintains clean aesthetic appearance
• Two-piece rotor design reduces unsprung weight while improving cooling
• Engineered to balance with front big brake upgrades for optimized brake bias
• Multiple rotor design options available to match vehicle styling preferences

This kit is specifically designed for popular muscle car rear axle applications where parking brake functionality is required. The forged caliper construction ensures maximum strength and durability, while the four-piston design provides superior pad wear characteristics and consistent pedal feel. The integrated parking brake mechanism delivers reliable static holding power without compromising the clean appearance of external caliper-mounted systems.