we all run 35" on 10" & a leveling kit no problem. I can't imagine 37/38 would be much worse, but your desire to have those really wide wheels is going to cause you grief.
Nitto's 37" on 22" for example specs out a 8.5-11" wheel. W/ the 40" on 24" you can get up to a 14" wide wheel, but IMHO you are gonna be causing yourself a lot of unnecessary grief that wide. Can you say 'curb feelers'?
A 37" on a 10" wide wheel with the right offset and you could be running a 4-6" lift. Yea, I know, too reasonable.
Good luck with your decision.