S spyke2289 New member Jan 20, 2011 #1 I have a 2003 silverado z71 with stock rim/tire configuration. How many miles per gallon will i lose if i change to a 17'' or 18'' rim and a 32'' or 33'' tire? Will this mess up my transmission? Would i need to reset my speedometer?
I have a 2003 silverado z71 with stock rim/tire configuration. How many miles per gallon will i lose if i change to a 17'' or 18'' rim and a 32'' or 33'' tire? Will this mess up my transmission? Would i need to reset my speedometer?
