That's nuts!
I bought my hoist at Autozone, on a price match for what Pepboys was selling theirs for, and I haven't had a lick of trouble out of mine, even when I was being stupid.
I had to change the motor mounts on my 72, so I had the engine stands underneath of it, and was using the hoist to pull the motor up. Well, after I was done, I was tired and didn't feel like using the floor jack on both sides to get the jackstands out, so I just wrapped the chain around the frame and used the hoist to lift the entire front of the truck. Picked that truck up like it was nothing.
Toad