I installed 285/75R17 tires and need to recalibrate the speedo. What is the best source to have this done. Anybody that has gone from the stock 265 70 to this tire know what the difference is.

Thanks

 

Dealer can do it, or if you know someone with a programmer.

 

Almost any shop with a scanner can do it for ya.

 

I went to the dodge dealer on a sunday (was driving by and saw the shop doors open )
asked the guy working in there if it could be done and he said sure pull up to the door drivers door close.
asked tires size,figured out what he needed hooked up computer and then said there ya go have a nice day!!!

 

had mine done by the dealer after I went to 315.s had to go into the abs menu to do it, but it is dead on now with gps readings to back it up.

 

mine is dead on too with my garmin