Can someone double check my tire size tune? I had the height at 30.6 but I could be off and seems like the speedo is off.
Thank you
v/r
Tune Linked below
<http://www.hptuners.com/forum/showthread.php?49100-99-Silverado-Radio-settings-keep-resetting&p=365304#post365304>
Tire - Nitto Terra Grappler
265/70/16 112S 200960