This braking system is designed with the S4 4-piston caliper, perfectly paired with a 12-inch, one-piece slotted and drilled rotor that’s zinc plated for durability. The S4 caliper is equipped with D.O.T compliant dust and weather seals, and it’s compatible with the widely-used DR1 or HB100 pad types. What makes Baer's design stand out is its innovative backing plate, which serves as both a caliper mount and a modern one-piece park brake shoe assembly. Plus, you’ll receive stainless braided hoses for added reliability. The 12" SS4 is a great fit for most wheels that are 16 inches or larger, making it ideal for 1982-92 GM F-Body Cars with OE Saginaw 10 Bolt C-clip (BIH) Disc Brake Housing Ends.