Exterior Components› Body Panels and Components
Goodmark/ProEFX
ROCKER PANEL; INNER; LH; 78-81 CENT
SKU: G00Z GMK403546078L
Moderate — 2–4 hours
Description
This rocker panel is compatible with several models, including the Buick Century, Buick Regal, Chevrolet Malibu, Chevrolet Monte Carlo, Oldsmobile Cutlass Supreme, and Pontiac Grand Prix. It is specifically designed for 2-door models and the front section of 4-door models within the 1978-1988 model years for Monte Carlo and Cutlass, and other specific year ranges for the other compatible vehicles.
Fitment
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Specifications
| Brand | Goodmark/ProEFX |
| Part Number | G00Z GMK403546078L |
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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