Wilwood Street Performance BB Rear P-Brake Kits, Drilled For 12 Bolt, C-Clip, 2.81 Offset, 13.00 Staggered

This Wilwood Street Performance BB Rear P-Brake Kit is made for muscle cars running 12-bolt Chevy rear axles with factory C-clips. It features four-piston Superlite 4R calipers, two-piece vented rotors in 13-inch or 14-inch sizes, and BP-10 compound pads. The setup uses a 2.81-inch offset and comes factory-drilled for C-clip-style axles, providing a good fit for many common builds. The internal shoe-style parking brake is housed inside the rotor, helping maintain a clean and compact layout at the axle.

Available caliper finishes and rotor designs allow for both function and a tailored appearance, supporting brake balance when paired with front brake upgrades. The package includes mounting hardware such as brackets, spacers, and rotor registration adapters to complete the assembly.

KEY SPECIFICATIONS

- Caliper Type: FNSL4R four-piston Superlite 4R calipers
- Rotor Options: Two-piece 13" or 14" rotors; 12.88" diameter vented design
- Pad Material: BP-10 high-performance compound
- Offset and Configuration: 2.81" offset; drilled for 12-bolt C-clip rear axles
- Additional Components: Brackets, spacers, bolts, washers, rotor registration adapters
- Prop65 Warning: Yes

INSTALLATION OVERVIEW

This kit is intended for installers who are familiar with rear disc brake conversions. It includes instructions for assembly on 12-bolt Chevy axles with staggered shock setups. Before installation, confirm that the axle flange, bearing dimensions, and center register match the kit specifications. Use red Loctite® 271 on all fasteners and torque bolts to spec. Maintain a minimum of 0.080-inch clearance between the wheel and caliper. Some items, such as parking brake cables, hydraulic lines, and a few mounting components, are not included and may need to be sourced separately. Reference photos during removal can help with reassembly.

FITMENT AND COMPATIBILITY

This kit is for Chevy rear ends using 12-bolt C-clip axles. Make sure your axle housing flange pattern, offset, and register dimensions match the kit before making any changes. Measure wheel-to-caliper clearance to confirm you have at least 0.080 inch of space. Always verify specs before modifying or painting any parts, as altered components are non-returnable.