right now i have goodyear wrangler mtr 245/75/16. im buying these rims and tires. they are bfg 285/55/20. will i loose my gas mileage? if so how much? i currently get about 15.7 mpg.

 

each bfg tire weighs 57lbs and the goodyear weights 49lbs. i have no clue on how much each stock wheel weighs or the boss 20s.

 

You'll probably end up losing some milage but those actually look pretty damn nice so who cares.

 

hang on just a second...let me whip out the calculator.

 

Alrighty....

245/75R16 = 30.47" tall
285/55R20 = 32.34" tall

Answer...yes, you will lose mileage. But not much since your still going with all terrains. You might lose 1 mpg. I'd suggest doing a torsion crank to clear those 32s...maybe even a 1" body lift.


I'm a big fan of "The Big One Inch" mod.

 

so is your mom

it also depends on your gearing i think, i had 4.10s stock and going from stock to 34s i only lost 1 mpg.

 

hahahahaha. funny guy.

Yea....forgot about the gears.

 

i have Limited Slip 8.8 w/ 4.10 ratio

 

i wont do a 1 inch bl. if i do a bl id do a 3 inch, bc all that work for 1 m-fn inch.

 

would a 3 inch bl look ok with 285/55/20 tires? there like 32.5 inches tall?

 

i weighed my new rims and tires and they weigh about 76lbs each. i think im gonna lose some mpgs.

 

A 3in BL will look great with those tires. It will give you more wheel well gap. With those new tires it should be a pretty sweet set up.

 

i really want a bl with the rims on my truck. i just gotta get some cash to do it.