Today we're going to be taking a look at some of the external replacement parts that we have available for the ultra-fab, this happens to be the Ultra 3502, but several different types of jacks out there that use kind of the same parts. We'll start at the top and work our way down. Here, at the top, we've got the plug that's designed to cover up the nut inside of there. That's what we would turn,… see more >