Wilwood 140-9213-DR Forged Narrow Superlite Rear Disc Brake Kit with Parking Brake - 4R

The Wilwood 140-9213-DR Forged Narrow Superlite 4R rear disc brake kit delivers a complete big brake solution for GM 12-bolt rear axles requiring integrated parking brake functionality. This kit features cross-drilled and slotted 12.88-inch (327mm) rotors with red powder-coated four-piston FNSL4R calipers, designed specifically for muscle car and performance street applications.

Key Components:

• FNSL4R forged billet aluminum four-piston calipers with BP-10 high-performance compound brake pads
• 12.88-inch (327mm x 28mm) two-piece vented rotors with curved slots and cross-drilled pattern
• High-quality drum-style parking brake assembly integrated into caliper design
• Triple bolt pattern compatibility: 5 x 4.50, 5 x 4.75, and 5 x 5.00 inches
• Red powder-coated caliper finish for custom appearance

Application Details:

• Designed for GM 8.875-inch (12-bolt) passenger car rear axles, sold as complete kit
• Compatible with OE C-clip axles only; does not support Special End or C-Clip Eliminator modifications
• 2.81-inch axle offset specification for proper caliper positioning
• Minimum 17-inch wheel diameter recommended for proper clearance

The neatly hidden internal shoe parking brake system provides a clean installation with superior static holding power, eliminating the need for bulky external parking brake mechanisms. Most Wilwood brake kits install easily with common hand tools used for routine brake service, making this an accessible upgrade for performance enthusiasts and professional builders alike.

This rear brake kit is engineered to complement front big brake upgrades, providing balanced braking performance for custom builds, pro-touring muscle cars, and high-performance street machines. The two-piece rotor design offers improved heat dissipation and allows for rotor replacement without removing the hub assembly.