Welcome to the forum Johnny....and cool truck.
You've come to the right place for a wide spectrum of knowledge on these trucks.
Better gas mileage?
-We need to know more about your truck.
What is your transmission? manual...3 speed, 4 speed? Automatic ? 2 speed? 3 speed?
That 6 cylinder can be tuned up but things will dead head for better mileage at that point.
Then you have to look at your gear/group....from the trans all the way back.
I would think that switching to a 4 speed automatic and maybe find out what your rear gear ratio is will be helpful....maybe change those to a 3:07 or similar.
Anywhoooo, get us some more info on the rest of your drivetrain!
All Good
Coley
