Wilwood 140-12555-D DPL Dual Rear Dynamic Drag Brake Kit SA Drilled M-W/Lamb Ends 1/2" Studs

The Wilwood 140-12555-D is a Billet Dynapro Lug-Drive (DPL) Dual Caliper Rear Dynamic Brake Kit featuring cross-drilled Super Alloy (SA) rotors, designed for high-performance drag racing and high-heat braking applications. This kit is engineered for axle housings with Mark Williams or Lamb-style ends and uses 1/2" wheel studs.

This kit is purpose-built for vehicles that generate above-average rear brake heat — including high-speed, heavy-weight drag cars and any build that relies heavily on the rear brakes for stopping power. The innovative lug-drive rotor mounting system eliminates traditional rotor bolts entirely. Instead, a large single internal snap-ring retains the rotor within the hat, making assembly and disassembly fast and straightforward.

Key Features:

• Dynamic rotor mounting: Rotors float independently of the hats, expanding and contracting freely through heat cycles without transferring thermal stress to attachment points
• Flatter, truer rotors: Eliminating thermal stress keeps rotors running true and maintains consistent brake response and pedal feel
• Reduced pad knock-back and rotor drag: The floating design actively minimizes these common high-heat braking issues
• Protected aluminum hats: Spring-loaded, replaceable stainless steel inserts in each lug-drive slot shield the aluminum hat from wear caused by brake torque loading
• Dual caliper configuration: Features forged billet Dynapro lug-mount four-piston calipers for maximum clamping force
• SA drilled rotors: 11.44" diameter Super Alloy cross-drilled rotors for improved heat dissipation and wet-weather bite
• Eliminates thermal distortion issues: Including bolt-hole misalignment problems common when remounting new rotors on a previously heat-cycled hat
• Fits Mark Williams and Lamb-style axle housing ends with 1/2" wheel studs

The Wilwood DPL Dynamic kit delivers a significant upgrade over conventional bolt-on rotor systems, providing superior braking consistency, extended rotor life, and reduced maintenance for serious drag racing applications.