ok found some 31x10.5 15 on my local craigslist with only 15k miles on them they are BFGoodrich all terrain a/t.

Now heres the kicker he only wants $20, one has a plug in it but other wise they are fine.

I have 235/75/15s on the truck now and i measured the diameter and the 235 are approximately 27" in diameter and obviously the tire i can hopefully get are 31" so will that be noticeable at all. ive been texting the guy and he has somebody coming out tomorrow april 12th at 4 pm and if i can get there before that other guy then i can have them.

so this is obviously a great deal so how are they gonna affect gas mileage and power for my 3.9l V6.

i am deffinately goon try my hardest because i want them but wanna know how much if at all i am gonna notice in height of the truck

 

235/75/15 is 28.9x9.3/15.....

 

You probably wont notice alot of difference besides the bigger tire will fill the fender well fuller. And there will be a slight decrease in power and gas mileage just because its a bigger tire and it will take more power to turn them.

 

Get em if you want em. Won't make THAT big a difference. Have em on my truck and love em.

 

at $20 can you go wrong? Grab them Then test them out and if don't like them turn around and sell the for more