I have the same 67 C-50 truck. I also have the "widow maker" rims. I am switching over to Accuride 28160 wheels so that I can use tubeless 9R22.5 radial tires.
I would also like to fine 4 Accuride 27727 wheels. This is a 20" lock ring wheel that uses 8.25-20 tires and tubes.
