AERO4-DS 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 Dust Boot calipers incorporate an exclusive dust wiper seal that further protects the piston bore from dust and corrosion. BP-20 compound pads, and oversized 14.25 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. Kit comes complete with stainless braided flex lines. Fitment: Nissan Patrol 1997-2018