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The Hellwig Frame FX kit for 1978–1987 GM G‑Body (2-door, excluding El Camino) provides a custom-fit solution to box and stiffen the factory chassis. Supplied with 14 pre-formed steel panels that reinforce weak frame-rail areas, the kit adds an extra body mount for floor-pan security and includes a transmission crossmember mount to support various drivetrain setups. It streamlines chassis reinforcement to improve overall strength, handling and ride quality.
Hellwig 78-87 GM G-Body 2dr (Excl. El Camino) Frame FX Kit
