Just received my Predator to change tire size (and get a few more ponies).

I noticed the default tire size shows 270/70R17 while the tires on my truck are the small 245/75R16. Using a tire size calculator that ends up being 4.4% larger than what is actually installed on the truck. I had noticed the speedo was about 1-2 mph fast before inserting the correct tire size. Anyone else notice this?

Seems to be within .5 mph now vs. GPS

Thanks

None of the stock settings where correct when I recieved my Predator to include the rear end. Once I loaded the stock #'s and the actual #'s all was well. Dead on with the GPS.