i have an HO 6 speed with a 2' lift and 315/70/17 bfg's does anyone know of a speedometer correction kit or a way to fix this?????????

I saw a couple of different ones in the Performance Products catalog. I think I remember them being $150 and $200.

TruSpeed Speedometer Recalibrator........http://www.4wheelerssupply.com/Products_01762/index.html?PHPSESSID=5148dc9052d1442568cc21899feeb 5f1....http://www.dieselplace.com/forum/smileys/Cool.gif

thanks guys I will check it out

The dealer can also change the revolutions per mile in the computer, I believe it is 601 for the 315s. May charge you for labor, but probably cheaper and easier than the tru speed route.