Pulled the jeep back home on the new truck setup. Added bags to the truck to prevent it from 'barking at the moon' after the level. The taller/wider tires and difference in aero definitely made an impact on mpg and perceived power.
Granted, I'm using a (much) heavier trailer this round, but I only pulled 9.5mpg whereas it was getting 11.5mpg before mods. Probably had a headwind as the storm rolled in, but meh... it still pulls decent for a half ton and the bags took out a bunch of the unsettledness you would get over the bigger bumps in the road.