I have a 2008 GMC Sierra regular cab long bed with the 4.8.

I was just wondering how many MPG's I can expect when I get rid of the ridiculously small 245's it came with and install 35's.

Any info would be greatly appreciated.

Earle

 

are you gonna lift it? they're not going to clear.

 

i've got a 2000 with a 4.8 with 6in and 35s and im getting about 14-15 city 18highway

 

ive got an 2002 silverado with a 4 in lift and 35's..i get about 13-16 city..but i also a 5.3 so you might get a little better than me