This system features S4 4-piston calipers mounted to 13", 2 piece slotted, drilled, zinc plated rotors. The S4 caliper has D.O.T compliant dust and weather seals. Rotors are pre-assembled with NAS high grade stainless hardware. Baer’s unique backing plate not only acts as a caliper mount, but also houses a modern 1-piece park brake shoe assembly. Stainless braided hoses and park brake assembly with cables are also included. Designed to be used with Saginaw 10 bolt C-clip rear end with OE drum brakes. The 13” SS4+ fits most 17” or larger wheels. All of Baer’s products feature material sourced from the USA. Products are also machined in house and the fit and finish are completed all in Phoenix, AZ.