Where you go in dumont makes a BIG difference, Ive got a 2wd truck and a 20ft travel trailer.
Ive been to dumont probably 15 times with the trailer and never got stuck untill the last trip out, my buddies camp was almost at the base of the big dune on the left of the entrance to comp/banshee, it was mega soft and my truck buried itself hardcore.
I had to dig the hitch out of the sand so I could get unhooked and towed out.
If I dont go in that close im normally fine.
My usual thing is to stop by the ranger station and air down to 20 or so PSI and then keep it nailed in the soft stuff, even this doesnt work close to the dunes tho.