Speaker: Today on our 2015 Ford F350 we'll be taking a look at and installing the Firestone air helper spring kit, part number F2535. As you can see here we've got our parts laid out so you can kind of see what you're going to get in your kit. You're going to have your passenger side over here as well as that deflector for your exhaust, your air hose assembly kit on the back side, then over here… see more >