Harbor Freight ... trailer, consider this Haul-Master drop leg trailer jack with a capacity of 10,000 pound. For the price of $159.99, this jack is meant to be welded directly to your trailer ...

The trailer ... tongue dimensions before buying to be sure. Most ­boat-trailer jacks are operated manually. The boater cranks the handle to move the jack up and down and raise or lower the boat. Other ...

Harbor Freight sells a Haul-Master dual wheel 1,500-pound jack for $49.99 that can be mounted to just about any trailer and swings away to keep it off the ground while you're towing.