If you have a trailer, then you'll have a Trailer Jack. What the Trailer Jack does is it will support the weight of the trailer when it is not connected to anything. The Trailer Jack will also raise and lower the height of the trailer so you can connect it to the hitch on your vehicle .
Why Should I Upgrade My Trailer Jack?
While you might already have a trailer with a jack, there are several reasons as to why you might want to upgrade it. One of these reasons might be if you plan on parking your trailer on uneven ground or on an incline. If this is the case, you'll need a jack that will level the trailer and provide support. Another reason might be that you have a gooseneck trail hitch or a fifth wheel hitch. They do make tripod jacks that help to provide support with these types of hitches.