This system showcases the impressive S4 4-piston caliper, paired with an 11.25" one-piece slotted and drilled zinc-plated rotor. The S4 caliper is equipped with D.O.T compliant dust and weather seals, and it accommodates the widely-used DR1 or HB100 pad types. What sets Baer apart is their innovative backing plate, which not only serves as a caliper mount but also incorporates a modern one-piece park brake shoe assembly. You'll also find stainless braided hoses included for added durability. The 11.25" SS4 is designed to fit most 15" or larger wheels, making it a versatile choice. It's compatible with rear ends featuring Ford 9" Torino (Late Big) bearing housing ends and comes with 5x4.5" and 5x4.75" bolt patterns.