R-Bo,
If you go to the Miller Welding site under projects you will find this:
http://www.millerwelds.com/interests/projects/ideagallery/project/966760928/I made one for my hoist that holds an adjustable spreader bar that I use to pick up my cabs. I have a flat bar on each end that goes in the cab and picks up on the top of the door frame.
The nice part about this set-up is that it remains perfectly level throughout it's lifting range. I won't be home for a few days, so I cannot upload any pictures of my hoist for you.
Lane
