I have been exploring all options for months trying to determine if there are tubeless rim blanks available to weld onto stock centers. The problem I incurred was that the
tubeless rims have a recess in the center to allow for the tire to sit in that recess while the bead is being pulled onto the rim.
The brakes on these trucks are so big that the recess will not fit over the rear drums. I finally found a truck with decent stock rims, and I'll mount them myself. A few heavy straps around the wheel will prevent any disasters while inflating them. The biggest key to success with split ring wheels is checking and cleaning very carefully for any corrosion or defects in the slot or on the ring.
