Can't decide what gears to run...need opinions

[ivorton74]

I've searched here on the forums and read threads but still can't make up my mind about my rear gears. I'm swapping a 5.3/4l60e in my truck with 3.08 gears. On one hand I know it might be good for fuel economy which is what I want but on the other hand I want that low end and passing power along with the fun factor. So its between the 3.08, 3.42 or 3.73...which do I run? Truck is going to be a daily driver and around where I live there is a lot of 55, 65 and 75 mph highways. I'm running 235/75/15s but may run 275 or 255/60s down the road too.