02 TRD OEM tire upgrade

i have set of original 265/70/16 BFG rugged terrain tires on my 02 tacoma. these tires suck, i hate them. original owner never replaced OEM tires. so i want to upgrade to mickey thompson baja MTZ 265/75/16. i was quoted $870 OTD. i checked the specs and mickey thompson weights 53 pounds versus BFG 37 pounds. and obvious increase in tire size but not much. my truck is all stock, no lifts or mods. will 265/75/16 fit my truck without rubbing? and since mickey thompson is 16 pounds heavier than BFG, im not sure MPG will suffer or not. guys at tire shop is giving me conflicting info on this?

 

Yes those will fit with minor rubbing on the frame when turned at full lock.
Yes your MPG will take a hit, but not much. Maybe 1-2 MPG average?

 

I have 265/75-16 Goodyear Wrangler TDs on my truck and they only rub at full turn with some front articulation (like when I pull out of the driveway). On flat ground, full turn, I have no rubbing. You can see my MPGs below. The weight of the tire will effect your mileage just as much as size.

 

My MPG took a hit. I have 265/75/16 BFG's and ive notice that my mpg has dropped... Im kind pissed becuase i do alot of driving. Now i drive my a grandma to save a little. There brand new so i hope when they wear down, my MPG will go up hopfully!