Miller's 1929 Ford Roadster Pickup - Building the Removable Aluminum Hardtop
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Pick your aluminum grade with their applications in mind. Use 3003 for making creative bends, as this metal is quite malleable. However if you need a structural component use 6061; it's harder due to its tensile strength and will stay flat and straight. For these two purposes, don't just use what's lying around the garage. Here Pat sizes the bar stock that will be welded into place as the frame for the rear window. View Related Article
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