Buford:
I tried several times to buy a rim jack(spreader) on e-bay to no avail. I read on another forum that rim jacks were bad to bend a rim and that using a turn buckle was much safer. So, when i needed to replace a tube in one of my wheels, I tried it and I think that it worked super well with little or no danger of bending a rim. I simply welded two 3/8 bolts in the eyes of the turnbuckle (keeps them form moving around) and placed it on the two lugs on each side of the split and used only hand force to pull the rim together. I only needed to move it a couple of inches or maybe less, I can't remember exactly. Used a couple of the old ford tire tools to pry the tire off the rim. It all went very easily as i recall. The beauty of it, is that when i was ready to push the rim back, it easy moved with hand pressure to turn the turn buckle. I was easily able to manuever the rim back in place inorder to lock the latch. I do realize that every job is not the same and my rims were old Ford. but it worked for me.
I hope this helps.