Rough Country 5 Inch

[ld691]

ok guys i have a 2009 sierra slt extended cab 4x4 with about 15000kms! i want ot put the rough country 5 inch lift on it as my local gm dealer is a rough country dealer and im friends with the boss, anyways i will be goin with 33inch tires on either 20or22inch rims, how much mpg will i lose with puttin the 33inch tires on? also has anyone else instanlld the 5inch lift? pictures and help pleasE!!!

[jsciaretta]

I have a levelling kit and 33's and lost at most 1 mile per gallon... 5" would probably do a little more due to wind resistance etc... Just a guess.

[ld691]

and im hoping i wont have to regear with 33s?

[jsciaretta]

You shouldn't have to. You either has 3.73 or 3.42 which are the common ones. There is a few 4.10's out there but not common. I have 3.73 and im fine with a 33" tire.