This system showcases the impressive S4 4-piston caliper, perfectly paired with a 12-inch, one-piece slotted and drilled zinc-plated rotor. The S4 caliper comes equipped with D.O.T compliant dust and weather seals, and it utilizes the popular DR1 or HB100 pad type for reliable performance. What’s really neat is Baer's innovative backing plate, which not only serves as a caliper mount but also cleverly houses a modern one-piece parking brake shoe assembly. You’ll also find stainless braided hoses included for added durability. The 12-inch SS4 is designed to fit most wheels that are 16 inches or larger. This setup is compatible with 1982-92 GM F-Body cars featuring OE Saginaw 10 Bolt C-clip (BIH) disc brake housing ends.