I am considering the addition of the US Gear overdrive to my 01' HO 6speed dually. It is 2wd and I have the 4:10. Great for towing, not so great for freeway driving.
My questions to those of you who have the setup, especially those with similar (6sp) is: What kind of mileage improvements have you seen with it? Do you find yourself gearsplitting or do you leave it one way or another depending on your load? And, given the steep expense, was it worth it and would you do it again???
Thanks in advance
Kev