Quick check with the guys pulling with a 5.4
#21
I experience the same gear/rpm that the OP does. 2010 screw 5.4 3.55. I sure wish I could lock out 6th gear though. I hit 6th sometimes, but not for long. Definitely not long enough for it to be worth the extra shifting. I never go over 65mph either. Love the factory TBC and sway, but I do also use a WDH with sway control bar. I get 8-10mpg pulling 24' TT, about 5k pounds. Pulls like a dream
Empty mpg is 17 city and 22 highway.
Empty mpg is 17 city and 22 highway.
#22
Flatlander
Thread Starter
#24
#25
#26
I'd install 4.10's or even 4.56's if I could find a good shop. The truck's #1 purpose in life is towing the TT on family trips. I didn't buy it for fuel economy. Besides, the double overdrive tranny would still keep RPMs reasonable.
#27
If I didn't drive so much while empty, I would go with 4.10's as well. last truck was a power stroke with 4.10's and I loved it, but it was close to 20 years old with almost 500k miles. Not a good daily driver. I wish I could afford two trucks!!!!