@twin magnolias
We did use all four. The folks had dug in pretty deep and so we needed to get all the wheels on top of the sand. They were buried up to the frame in sand. We dug out with shovels and put the maxtrax as far as possible under the wheels. Then worked like a charm after that. Was just a matter of placing them in front of the wheels several times to get out of the soft stuff.
We did use all four. The folks had dug in pretty deep and so we needed to get all the wheels on top of the sand. They were buried up to the frame in sand. We dug out with shovels and put the maxtrax as far as possible under the wheels. Then worked like a charm after that. Was just a matter of placing them in front of the wheels several times to get out of the soft stuff.