Ghost Ram

i just put a set of 35's on my truck and went to the local five star dealer to get my speedo recalibrated. i gave them the revs per mile and they ended up telling me that chrysler changed there programed tire size list after 04' and could not input that size into my ecm. the closest tire they had on the list was a 275/70/19.5 so they set it to that. i can tell a difference from my speed vs. rpm after leaving there so they did infact calibrate it. they told me it wont be 100% correct and still charged me 95. labor, ***?

chipmonk

you should have put that $95 towards the purchase of a recallibration tool that can adjust your speedo to your actual tire size.

Pooter

'06s cant be adjusted to 35s, IIRC it can only be done up to 33s, '05s and below can be done just fine at the dealership.
(I dont know if a Smarty can do it on a '06+)

Personally, I dont care that my speedo is off, I can do math in my head and ill have less miles on the truck