Wilwood 140-14146-D Billet Dynapro Lug-Drive Rear Disc Brake Kit

The Wilwood 140-14146-D is a Billet Dynapro Lug-Drive Disc Brake Kit featuring Dynamic Stainless Super Alloy rotors engineered for vehicles that demand exceptional rear braking performance. This kit is especially well-suited for cars that rely heavily on rear brakes for deceleration, as well as high-speed or heavy-weight vehicles that generate above-average rear brake heat.

Lug-Drive Rotor Mounting System:

The centerpiece of this kit is Wilwood's innovative lug-drive rotor mounting system, which eliminates traditional rotor bolts entirely. Instead, a large single internal snap-ring securely retains the rotor within the hat for fast, straightforward assembly and installation. This floating-rotor design allows the rotor to expand and contract independently of the hat through thermal cycles, removing all thermally generated stress from the rotor attachment points — keeping rotors flatter and running truer under extreme conditions.

Key Features:

• Dynamic Stainless Super Alloy rotors for superior heat resistance and durability
• Snap-ring rotor retention replaces traditional bolts for simplified installation
• Floating rotor design allows independent thermal expansion, reducing warping and distortion
• Spring-loaded, replaceable stainless steel inserts in each lug-drive slot protect the aluminum hat from wear caused by rotor loading under brake torque
• Billet aluminum hats free from thermal distortion thanks to the lug-drive interface
• Available in two rotor diameters: traditional 11.44" and a compact 11.25" for clearance with bead lock rims
• Available in Single and Dual caliper configurations to match your braking requirements

Wilwood's Billet Dynapro Lug-Drive Brake Kit delivers race-proven technology in a package designed for both performance street and competition use, offering long service life, reduced maintenance, and consistent stopping power under the most demanding thermal conditions.