I have 285/70r17 BFG A/T "E" (59 lbs) with 7,000 miles on them. I will be towing 4800 lbs (weight with trailer) about once a month on flat lands (Miami, The Keys) except of course when pulling the boat out of the ramp. I've pulled this same boat before with 265/75r16 BFG A/T "E" (54 lbs) and had no issues.
I was wondering if going to 265/70r17 BFG A/T's "C" (45 lbs) would benefit the vehicle when towing and probably all around MPG.
My question is: Will reducing the overall diameter of the tire by 1" & total tire weight by 56 lbs make a noticeable improvement in MPG's & towing driveability?
I assume that it won't affect off road capabilities.