The Stovebolt Site Forums The Parking Lot Big Bolts 1950 4100 axle

Here are the 19.5" steelies https://buytruckwheels.com/products/19-5x6-hub-pilot-dual-10-hole-p-300-chevrolet-or-gmc-typical

Here is the preorder for the 22.5" size https://buytruckwheels.com/products/22-5x6-75-white-steel-10x7-25 (Note - these show as currently out of stock)

So they can be had. The 19.5" are even genuine Accuride. Which is probably why they weigh 40lbs instead of 90lbs. It's a big expense for Bolters like us, but hey at least you only have to do it once, and then you got modern wheels and tires you can actually buy, forever.