This system showcases the impressive S4 4-piston caliper paired with a robust 12-inch, one-piece slotted and drilled zinc-plated rotor. The S4 caliper is designed with D.O.T compliant dust and weather seals, ensuring durability in various conditions, and it accommodates the widely-used DR1 or HB100 pad types. What sets Baer's design apart is its innovative backing plate, which not only serves as a caliper mount but also incorporates a modern one-piece park brake shoe assembly for added convenience. Plus, you'll find stainless braided hoses included for enhanced performance. The 12-inch SS4 is compatible with most 16-inch or larger wheels, making it a versatile choice for your ride. It's a perfect fit for the 1979-92 Ford Mustang equipped with the OE Ford 8.8" C-clip rear end (5 Lug).