1963-1987 Chevy-GMC Truck Wilwood FNSL4R Rear Brake Kit, 5 Lug-4 Piston Black Calipers, 13 Rotors-Half Ton 2WD

High Performance Brake Kit. The Wilwood 1963-1987 Chevy-GMC Truck Wilwood FNSL4R Rear Brake Kit, 5 Lug-4 Piston Black Calipers, 13 Rotors-Half Ton 2WD is designed to upgrade rear braking performance with a powerful Big Brake system. This kit balances braking forces with front big brake upgrades and includes a parking brake, providing both superior stopping power and reliable vehicle holding. It is ideal for custom builds, classic muscle trucks, and high performance street vehicles requiring enhanced rear braking capability.

Construction and Appearance. The kit features forged Narrow Superlite 4R calipers constructed from high-strength materials and finished in black powder coat for durability and corrosion resistance. The rotors are two-piece GT 48 curved vane style made from Spec-37 iron with a black electro-coat finish, providing effective heat dissipation and a sleek, aggressive look. The assembly includes an aluminum parking brake hat with a black E-coat finish, ensuring a lightweight yet robust construction.

Installation. Installation is straightforward with radial mounting calipers designed to fit the Large Chevy C10 rear axle flange without drilling when matched to the correct axle offset. Precise fitment ensures a clean installation and compatibility with 17-inch or larger wheels; checking wheel clearance is recommended.

Application. Designed specifically for use on Large Chevy C10 rear axle housings with a 2.42-inch axle offset and 5 lug configuration. Suitable for classic Chevrolet trucks and select compatible vehicles requiring this exact rear axle specification.

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