Normal Rpm?
I have a 2006 6.0 f350, with 37" tires on it. ( Automatic)
I find when its cold with no load, she wont want to shift until 2200-2300 or so rpm, unless I really feather the gas ( but then I'm going extremely slow).
Once she is warmed up she will shift steadily around the 1900-2000rpm mark.
Do the bigger tires affect the shifting?
Maybe Im just paranoid and this is normal...
what do you guys think..




