Wilwood 140-14135-D Billet Dynapro Lug-Drive SA Rotor Rear Disc Brake Kit

The Wilwood Billet Dynapro Lug-Drive Dynamic Stainless Super Alloy (SA) Rotor Rear Disc Brake Kit is engineered for high-performance applications where rear brake heat and stopping demands exceed the limits of conventional brake systems. This kit is an ideal solution for drag racing, high-speed vehicles, and heavy vehicles that place exceptional loads on rear brakes.

Lug-Drive Rotor Mounting System:

The defining feature of this kit is its innovative lug-drive rotor mounting system. Rather than using traditional rotor bolts, a large single internal snap-ring retains the rotor within the hat — making assembly and installation fast and straightforward. This design allows the rotor to move independently of the hat as it expands and contracts through heat cycles, eliminating all thermally generated stress from the rotor attachment points. The result: rotors that stay flatter and run truer under extreme conditions.

Key Features:

• Stainless Super Alloy (SA) rotors for exceptional heat resistance and durability
• Lug-drive snap-ring retention eliminates rotor bolts for simplified assembly
• Thermally independent rotor-to-hat design removes stress from attachment points and prevents hat distortion
• Spring-loaded, replaceable stainless steel inserts in each lug-drive slot protect the aluminum hat from wear caused by brake torque loading
• Two rotor diameter options: traditional 11.44" diameter or a compact 11.25" diameter for use with bead lock rims
• Available in Single or Dual caliper configurations to suit a range of performance needs
• Forged billet caliper construction for strength and rigidity

Wilwood's Dynapro Lug-Drive SA brake kit delivers race-proven braking performance with a design that eliminates the thermal stress failures common in conventional rotor mounting systems. Whether configured as a single or dual caliper setup, this kit provides the reliability and stopping power demanded by serious performance builds.