Wilwood 140-14139-D Billet Dynapro Lug-Drive Rear Disc Brake Kit

The Wilwood 140-14139-D Billet Dynapro Lug-Drive Disc Brake Kit is engineered for high-performance vehicles that demand superior rear brake performance. This kit is especially beneficial for cars that rely heavily on rear braking, as well as high-speed and heavy-weight vehicles that generate above-average rear brake heat.

Lug-Drive Rotor Mounting System:

The signature lug-drive rotor mounting system eliminates traditional rotor bolts entirely. Instead, a large single internal snap-ring retains the rotor within the hat for fast, simple assembly. This design allows the rotor to move independently of the hat as it expands and contracts through heat cycles, removing all thermally generated stress from the rotor attachment points — resulting in rotors that stay flatter and run truer under demanding conditions.

Key Features:

• Billet aluminum hats — no longer distorted by thermal expansion and shrinkage of the rotor
• Dynamic Stainless Super Alloy rotors — available in two diameters: traditional 11.44" and compact 11.25" for clearance with bead lock rims
• Spring-loaded, replaceable stainless steel inserts in each lug-drive slot protect the aluminum hat from wear caused by brake torque loading
• Snap-ring rotor retention — makes assembly and disassembly fast and straightforward
• Available in Single and Dual caliper configurations to suit a variety of performance applications
• Ideal for high-speed, heavy-load, and rear-brake-dependent vehicles

The Wilwood 140-14139-D Billet Dynapro Lug-Drive Disc Brake Kit delivers exceptional thermal management and braking consistency, making it a premier choice for performance street, track, and racing applications where rear brake reliability is critical.