Direct bolt on heavy duty front and rear big brake kit features front 330x28mm vented rotors and 51mm 2-piston caliper, front brake lines, rear 342x14mm solid rotors and 48mm single piston caliper, heavy-duty brake pads, and hardware. Replacement pads and rotors are available. Note: 17-inch wheels or larger are required, however the kit will not accommodate all 17-inch wheels. Be sure to check clearance before driving. Fits two-door Jeep Wrangler (JL) Sport and Sahara and four-door Sport equipped with regular duty four-wheel disc brakes.