When your trailer has been properly equipped, the dolly just slides onto the trailer, is tied down and off you go. Seitech equipped my trailer with their latest design late last spring. Having trailered my Sunfish with the dolly/trailer combo to most of the major Sunfish races in New England, I can assure you that the system works like a charm.
Suggest you view the system on their web site - http://www.seitech.com/trailerdollycombo. More.
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