'10 Ram 2500 Cummins Speedo reset
Ok, there is plenty of advice on the Hemi but nothing for the Cummins, regarding larger tires and speedo re-setting.
Is there no such tool or is the computer not able to be adjusted for larger tires?
I know that there are different sizes available for the 2500 cummins regarding tires and model (ST, SLX, Larriat).
There seem to be Programers, for the OBDII port, but again most are only for the Hemi... They don't even list the cummins in their tool support/info sections.
So how to adjust for tire size so that the speedo reads correctly?
Thanks in advance.