Tire size corecction ?
Elder User
Joined: Aug 2017
Posts: 703
Likes: 1
You can get close to a 37 using ForScan, I think KubotaOrange76 has figured this out...anything more than that and a product like the one suggested above is your best bet. I run 37's and have left mine, if anything I like "less miles on the truck".
New User
Joined: Aug 2017
Posts: 7
Likes: 0
I used Forscan to correct the speedometer, but it illuminated a CEL. I don't think there is any way around this. I got tired of the light and installed the Hypertech speedometer calibration module. Install was very easy and speedometer is accurate.
Thread
Thread Starter
Forum
Replies
Last Post
chris86924
1999 - 2003 7.3L Power Stroke Diesel
6
Nov 24, 2015 12:38 PM
