This Big Brake Conversion Kit is a front & rear axle for 2007-2018 Jeep Wrangler (JK/JKU) models. This bolt-on upgrade is recommended for Jeeps with suspension lifts, bigger tires and increased weight due to steel bumpers, skid plates and other heavy modifications. This kit features a set of new extended caliper brackets. The new brackets are used to relocate the caliper position to accommodate the new 20% larger rotors. The rotors are drilled & slotted to provide maximum cooling and silver Zinc plated to help protect against rust and corrosion. The Z36 Carbon-Fiber Ceramic brake pads provide a great pad bite and fade-free braking performance both on and off the trails. The Z36 pads also feature a premium stainless steel shim for better heat dissipation and virtually noise-free braking. This brake kit includes premium stainless steel hardware for an easy, problem-free install.