Hi everybody, Andy here with etrailer.com, and today, we're taking a look at this Bulldog Square Adjustable Gooseneck Coupler. Now, this user-friendly square gooseneck coupler with this topwind crank is gonna give you the flexibility to use your trailer with different tow vehicles, allowing you to more easily adjust the height of your coupler. Now, this is heavy duty, it is constructed out of a… see more >