The Wilwood Narrow Superlite 4R rear disc kit for Chevy 12‑bolt applications with a 3.15" bearing spec is a forged narrow big‑brake upgrade offering an integrated parking brake. It pairs FNSL4R four‑piston calipers with two‑piece 13" or 14" rotors and BP‑10 pads for optimized, balanced stopping that complements front upgrades. The concealed internal shoe provides superior static parking hold and the kit supports optional caliper and rotor choices.
Wilwood Narrow Superlite 4R Rear P-Brk Kit 12.88in Drilled Chevy 12 Bolt-Spec 3.15in Bearing