ecm tune egr dpf intact

[Rawze]

(04-05-2021 )gearratio Wrote:  if you're driving for fuel mileage,you should be driving 60 mph.very few options with a 10 speed.horrible setup 13 speed only,and there's a difference between emissions trucks and what used to be on the road

I have a 10-speed tranny and 3.55's .. I do just fine.

here is some more on rpm and gear ranges..
http://rawze.com/forums/showthread.php?t...3#pid13433