Thanks in advance to any and all who can offer some suggestions. I have a brand new spare tire mounted on the back of my Itasca. It is mounted on the stuff carrier, not the bumper. Problem is, I want to put a storage box in the carrier to store things in but the tire is in the way. It takes up room in the carrier. I know some models came with the tires mounted underneath the RV. I've checked under mine and there is nothing there. But, there is room to add one. I'm asking for ideas and suggestions on where to go, what to ask for, where to add it, and if it will work. Thanks!