I believe the floor panels (and the exterior cab sheet metal) were 19 gauge. Closest readily available for patches (flat stock) is usually 18 gauge.

19 gauge (0.0418 inches) is thinner than 18 gauge (0.0468 inches)and thicker than 20 gauge (0.0359 inches)


Kevin
1951 Chevy 3100 work truck
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1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.