You know, you only need one jack. After lifting one leg, put a block under the dolly next to the wheel. When you lower the jack, the block won't allow the dolly to tip up at the other end(s). Then you can easily jack the other legs, one at a time, doing the same thing. When finished, you will just remove the blocks. I've used this method many times. FWIW. Paul McCloud San Diego
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