actually, up until I started having all the engine problems with this unit, a gear change was in the plans.
I am a mobile heavy duty mechanic/welder and gear swaps in little stuff like these trucks isn't much of a big issue.
That said, a swap to 3.91 gears will keep you below 2k rpm at 60 mph, which is good, however, at this point, I am looking for another chassis to put my work deck on.