Here are three types of tongue jacks for today’s boat trailers. Swing Jacks. The Lift: Hand-crank jacks such as West Marine’s 1,500-pound-capacity swivel-mount model ($114.99; westmarine.com) bolt on ...

If the telescoping portion of the jack is extended too much, lateral stress from moving the trailer can bend or break the tube or mounting bracket. Hello Dolly A manual dolly such as the Ultra-Tow ...