I just watched a video showing how to set up factory TPMS for trailer on GM trucks. It says you can program (in the truck) tire pressures between 50 psi - 100 psi. My 5th wheel tires require 110 psi...
And “putting 10 ply tires on half tons since aught 4” unless your newest truck is still older than aught 8, you should already be familiar with this. No?