gas mileage going from 31X10.5 to 32's or 33's

I have a v-6, 5spd extended cab... currently replacing rear leafs with 4 leaf pack but not sure how much lift that will give as not specfied... if not what I want I will add new shackles to add 1.5" or so more...

replacing the rear leaf because they are sagging...

Will then install my billy 5100's and add the 2.5" that I can get from the shocks, if that matches or is less than the rear...

Not sure what the 31X10.5 will look like with this lift but I may want larger tires...

Those that have gone up in tire size what does it do to your gas mileage?
I mainly drive highway to work ever day so I do not want to kill my mileage... currenlty get 20mpg consistently...

 

i just showed my truck on my build thread (rustyshakelford) and i did a 3" from toytech and im running 31x10.50x15s. check out the pics and let me know if you want some better ones. I like the way it looks but when the tires wear out, ill go a little wider instead of taller

brett

 

looks good... If I get that look with 31's then that will be fine with me...

What paint did you use on the wheels as I would think about doing the same...

 

i went to autozone and bought rust-oleum high performance wheel paint. I sprayed them with simple green and scrubed them down, quickly sanded them, primered them and finally painted them. the paint runs very easily so use it lightly and do several coats. i bought two cans and still have some left over after doing all four wheels, rear bumper and grill.

brett