AMD Firewall, 47-55 Chevy GMC Pickup Truck Suburban X370-4047

Restore the core of your classic truck project with the Firewall – 1947–1955 Chevy GMC Pickup & Suburban ('55 1st Series). Designed for the beloved Advanced Design (AD) 3100 and 3600 series trucks, this firewall fits all 1947–1955 1st Series Chevrolet and GMC pickups and Suburbans. Whether you’re tackling a frame-off rebuild or addressing major rust in the cab, this panel offers a structurally sound and restoration-ready solution.

This is an X-Parts firewall, part of AMD’s third-party offering for products not yet manufactured using our in-house tooling. While it does not match the premium OE-style fit and finish of AMD-branded sheet metal, it’s a viable solution trusted by the restoration community. Some panels may require additional bodywork during installation, but each has been vetted for workability and structural use across countless real-world restorations.

Additional Benefits

Whether you're bringing a barn-find AD truck back to life or cleaning up a custom build, this firewall is an essential component in rebuilding the cab’s strength and structural integrity. It’s a common rust-prone area and a frequent target for modifications, making replacement the cleanest option. AMD’s X-Parts line gives restorers access to components not yet available in AMD’s proprietary stampings—bridging the gap with field-proven alternatives.

Each X-Part is chosen based on installability, material quality, and historical success in the restoration market. While it may require additional fitting and prep, it offers a practical solution when premium AMD tooling is not yet available.

Compatibility

Does not fit 1955 2nd Series (Task Force) trucks.

Restore the Heart of Your Cab

AMD’s Firewall – 47–55 Chevy/GMC Pickup is the reliable solution to one of the most common rust repairs in AD trucks. Backed by AMD’s commitment to restoration excellence and offered through our X-Parts program, it’s a trustworthy option when originality and strength matter. Start your build off right—and get your classic truck back on the road where it belongs.

Auto Metal Direct is a team of true car guys with years of experience in sheet metal reproduction, car restoration and paint/body work. We believe that quality is not subjective!  Our mission is to provide the best customer experience for the Ford, Mopar and GM classic car markets - both in products and in service. 

Our panels are made from proper gauge steel and include all correct-as-original clips, tabs, flanges, bends and seams. Each time a prototype body panel comes off of a new tooling, we test fit it on a car. The marked up prototype is then used to change and improve the tools, and a new prototype is produced. This procedure might be repeated multiple times but, once the part is finally approved, you can be assured of a quality part.

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