Randy,
It's only limited by your imagination. Any method
you come up with is going to affect the utility and/or
'looks' of the truck, though. Ranges from some type
of temporary mount in the bed of the truck to a ball
mount on the side of the bed, to a custom mount off
the bumper, to whatever. I think the one thing that's
common to all types of screw driver antennas is that
they will need some bracing or guying to stay up-right.
With that and routing the feed line, you're off to the
races...
'Doc