The Wilwood AERO4 rear axle kit brings high-capacity braking to late-model trucks and SUVs with AERO4 calipers, BP-10 pads and oversized 14.25" rotors matched to OE master cylinder output and ABS. Replacing the factory rear discs while keeping the OE parking brake, the kit enhances braking capacity, durability, and styling for vehicles that pair big wheels, tires, and suspension upgrades with increased brake demands.
AERO4 Big Brake rear axle kits replace the factory disc brakes and use the OE parking brake assembly as a compliment to front big brake upgrades on late model trucks and SUV’s. High capacity braking from the AERO4 calipers, BP-10 compound pads, and oversized rotors are matched to the OE master cylinder output, ABS function, and individual vehicle bias requirements. Enhanced brake performance, increased durability, and high-tech style compliment big wheel, tire, and suspension upgrades on customized vehicles, tow rigs, and all others with increased brake requirements from high GVW.