Barnfind is on the money with the Ford lug pattern. You'll need '97 model or earlier wheels from a Ford.
The front bumper looks like one for a 1/2 or 3/4 ton truck (and maybe 1 ton). The bigger trucks had a deeper channel bumper.


Kevin
1951 Chevy 3100 work truck
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Photos
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.