I pulled mine, and set it back on the frame using my engine hoist. I have a steel C channel cut to fit the width under the bed rails, side to side. If the tub is bare, the balance point is just behind the front of the bed side, right behind that vertical box section behind the door jamb. I have a couple slots cut in the beam for a chain to catch in. Hook up the hoist, jack it up, move it where you want.
Here's a pic from my thread...
http://67-72chevytrucks.com/vboard/s...&postcount=324