This system showcases the impressive S4 4-piston caliper, paired with an 11.25" one-piece slot, drilled, zinc-plated rotor. The S4 caliper is designed with D.O.T compliant dust and weather seals, ensuring durability and reliability in all conditions. It accommodates the widely used DR1 or HB100 pad type for your convenience. What’s really neat about Baer's unique backing plate is that it not only serves as a caliper mount but also cleverly integrates a modern one-piece park brake shoe assembly. Plus, you’ll find stainless braided hoses included for added performance and safety. The 11.25" SS4 is compatible with most 15" or larger wheels, making it a versatile choice for your setup. It fits rear ends with Ford 9" Torino (Late Big) Bearing Housing Ends, with bolt patterns of 5x4.5" and 5x4.75"BC.