I dig it.
If you want to get away from the split wheels, (you may already know) you can use 'demountable' wheels for tubeless radials. Like: 295/75/22.5 (low-pro) or 11r 22.5..
So if your current tires are 10.00 - 20's (20" Dayton hubs) a 22.5 demountable wheel should work on yours. Be sure to get the wedges too, or make sure your current wedges seat into the wheel firmly.
Myself, got a 75 GMC C65 dump that still hauls and makes money. It had the 10.00 - 20s with the split wheels so I switched them out to the aformentioned setup.
If you have 22" Dayton hubs then a 24.5 demountable wheel would be what you need.
Also, they make new spacers (there are different widths) that fit between the duals on the rear. Most rings are beat up and rusted which, aside from obvious safety problems, make it a real PITA to get the wheels bolted on so they won't wobble going down the road.
Last edited by C-10; 12-02-2012 at 08:03 AM.