hotrodpierre

Hi Guys,

Long time lurker, first time poster.

I plan on getting some new meats on my 1996 F150 4X4. I want to step up to a 31x10.50 tire from the stock 235/75/15's. Any rough guesses how much that will throw the speedometer off? I can live with 2 or 3 miles, but I am thinking it will be more like 5 or so? Anybody who has done it, please let me know.

Thanks,
Jake

countryboy115

it dont really change it much at all. it changes it a couple miles and hour. i was runnin 70 down the highway and my gps said 73. so it dont change it much.