Chuk - You may already know, but looking at the wheel/tire specs in the
1946 Chevrolet Truck Data PDF (Pages 91 & 92), your '46 2 Ton (6000 Series) needs the
20x5.0, 10 lug, 7-1/4" bolt circle with a 5-3/8" offset. The same wheels were used on the Chevy 5000 Series COE's, so something to pay attention too to widen your search range.
The data file shows the same style/design wheel with a 4-3/4" offset (used on the 4000 Series 1-1/2 tons), which won't match up, if your other wheels are the 5-3/8" offset. You'll need to be very specific checking the offset when confirming possible finds.
I did a little wandering through Facebook Market Place last night and struck out on finding anything being offered in your vicinity. You may have to search more distant areas to find what you need if a fellow Bolter can't help.
I also did a tiny bit of searching through ebay, but only found one ad for 1-1/2ton rims that have the wrong offset.
Hope this provides some help for you and fellow Bolters to see if a wheel can be found.
