Search found 1 match

by SteveInWV
Mon Dec 11, 2017 1:50 pm
Forum: Beta testing
Topic: Setting arbitrary tire sizes for speedometer calibration
Replies: 103
Views: 94628

Re: Setting arbitrary tire sizes for speedometer calibration

I have a 2013 F150 and cannot get this to do anything with my truck. I just had 295/60 R20 Nitto Ridge Grapplers installed on my OEM 20" rims. I've tried changing the pre-canned settings, and a customer setting using the calculator, and no matter what I do, my speedometer is 3 MPH slow. Any thoughts...