The 37-38 wheels would originally be 4.0 inches wide between the beads, but the 39-55.1 1/2 ton's used 4.5 wheels that look identical to the 4.0 wide wheels. That's according to the parts listing, although the vehicle info kits say the 4 inch wide wheels were used up thru 1949. They are both pretty common. I found a 4.5 inch wheel at the storage yard where I keep my pickup camper. Take a tape measure with you when checking.
Last edited by klhansen; 10/12/2026 4:35 AM. Reason: corrected info
