OBS Trucks FTW!
I have a 1994 Chevy K1500 Z71 that has a 4" lift and 33" tires on it and the speedometer has never been recalibrated. By what percent would the odometer be off as compared to stock tires? Thanks for your help.
And seems to me when I had 33's on it before my lift it was off by 2-3 mph. I had 265's on it before that.Take it out and do 60mph, see how close to 1 minute you are at 1 mile according to the road signs. then adjust your speed to make 1 mile in a minute. when I had 35's and stock 3.73 gears I was off by about 5mph.