It's a GVW thing! Those wheels used on heavier trucks. You say it has heavy GVW. Dayton wheels is correct name of this style. Short frame could have been a "tractor" or as said, small dump. I have an IH rated at 26,000 GVW, it has those wheels. Just happens to be air brakes, BUT, I have had standard brakes on some GMC's I once owned with same wheels. One thing that is diff on this type, is use of a spacer between the rear duals. One wheel is turned around, slips way on hub, put on a spacer, then outer wheel just slips a small distance onto the hub. There is a bumped up rim on one side for the lugs to catch on.
Probly value in engine if a runner, but hard to sell big truck axles or chassis parts. BTDT, or tried I should say. Ended up cutting up for scrap! Cost more in torch gas than I got in scrap price! Body should be same in many ways as smaller trucks, maybe dash gauges and floor pan are diff for heavier usage trucks.

G.L. Grumpy's
Old Iron Ranch
Huntington, IN 46750


MM R tractor, Speedex
and Power King tractors