Oh yeah, both pre-emmisions too. I just got rid of an '06 379 with 3:55's a 13spd and a 500 ISX. I finally broke 5 mpg running from Phoenix to...
Ok, which gets better fuel mileage pulling flatbed? Same specd truck same load same driver? Anybody have experience?
PackRatTDI, Tell me more about the geardown protection. Can it be turned off? If I'm running around in town and going through the gears up a...
Wow, good info so far. Gives me a couple more tricks to try to figure out what's going on by the seat of my pants. Although, any more with all the...
Just went from a 2003 379 Pete with a 550 Kitty, 18 spd and 3:36 gears. It would pull like crazy through every gear up to 2000-2100 rpm (if you...
