P/S Rear Disc Kit Chevy 12 Bolt

The Wilwood P/S Rear Disc Kit for Chevy 12 Bolt is a purpose-engineered brake system upgrade designed for serious high-performance and off-road applications. This rear disc brake kit combines Wilwood's proven Dynalite caliper architecture with a 4-piston design and 12-inch drilled and slotted rotor to deliver consistent stopping power and heat dissipation under sustained braking demands. The kit is specifically engineered for GM 12-bolt differentials and includes everything needed for a complete rear brake conversion—caliper, rotor, and mounting hardware—eliminating guesswork during installation.

The drilled and slotted rotor design enhances thermal management by expelling brake dust and water vapor, critical for off-road operations where mud, water crossings, or prolonged descent braking can compromise thermal capacity. The offset hat rotor design adds structural rigidity while maintaining a compact footprint suitable for Chevy 12-bolt applications. All components receive a durable black powder-coat finish that resists corrosion in harsh environments. At 37.35 pounds, the complete kit balances robust construction with practical handling during installation, and the aluminum caliper housing contributes to both weight efficiency and heat rejection.

This brake kit is built for operators and enthusiasts who demand redundant stopping capability on modified or performance-driven vehicles running Chevy 12-bolt rear ends—from off-road recovery platforms to dedicated range vehicles. The 4-piston caliper provides balanced clamping force across the rotor, essential for consistent brake feel and reduced fade during repeated hard stops. Wilwood's modular approach means the system supports future upgrades to master cylinders, proportioning valves, or fluid lines without requiring a complete brake redesign. This is the choice for users who view braking as a critical safety system rather than an afterthought.