To get the body level on the lift, I found I needed some method of leveling the body. Don't know if it is a characteristic of the Max Jax lifts, but mine does not lift evenly from side to side, even at maximum lift height. So I found that BendPak sells adjustable lift pads for two post lifts that do fit on the Max Jax arms. They work well and gave me about 2" of adjustability at each pad. The adjustable pads are limited to 2" because there is no hole in the Max Jax lift arm as there is in a Bend Pak model. Once the body was leveled on the lift, it was easy to get the sub-frame in place, aligned, level and square. I got my set of adjustable lift pads from Summit, just added the link below to show a picture.
Mine doesn't lift perfectly even either. The delay is about 1/2 a second or so it seems between clunks of the stops. At the top it seems level enough :dunno:
Thanks for the link.