indy82z Posted August 7, 2017 Report Share Posted August 7, 2017 My Father in Law just installed rims and tires from a 2016 Silverado (18") on his 2003 Silverado and now his speedometer is now about 5 mph off. Is anyone able to flash his computer to adjust for the wheels size difference? I called the Chevy dealers and they want $120 to do this which seems absolutely ridiculous for what I would assume is 10 minutes worth of work. Anyone help out for a more reasonable price? Thanks Tom Quote Link to comment Share on other sites More sharing options...
Richard Cranium Posted August 8, 2017 Report Share Posted August 8, 2017 I assume Dyno Brian can handle something that simple. https://www.facebook.com/DynoTuneMotorsports/ Quote Link to comment Share on other sites More sharing options...
iwashmycar Posted August 8, 2017 Report Share Posted August 8, 2017 If its reading 5 slower then that is a good thing lol. Less miles on the truck! Quote Link to comment Share on other sites More sharing options...
indy82z Posted August 8, 2017 Author Report Share Posted August 8, 2017 If its reading 5 slower then that is a good thing lol. Less miles on the truck! Problem is that it is 5mph faster Quote Link to comment Share on other sites More sharing options...
iwashmycar Posted August 9, 2017 Report Share Posted August 9, 2017 ahha. I see Quote Link to comment Share on other sites More sharing options...
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