Thanks for the input.
rockylarson,
You have a different rear cap in 2004. Perhaps by 2007 Tiffin had already abandon the idea of spare tires.
Doug,
Yes, the tag is to the left. I have no intention of changing a flat myself. I use Coach-Net, they say:
"24/7 Flat Tire Assistance - changing of your vehicle's flat tire using the vehicle's mounted and inflated spare tire, or if you do not have a functional tire, your vehicle will be towed to a tire repair facility"
I'm new to class A's and I am willing to learn, but my current thinking is that if I don't have a mounted, inflated spare that I am turning what is an inconvenience taking several hours into at best a day-long ordeal with the added risks of towing.
You are correct about having a capable tire holder. There is a lot of stress at the rear of a coach. That is why I want to know if Tiffin designed this or if it is just an attempt at a bike rack by a previous owner. If this is not the foundation for a legitimate spare rack, perhaps I could use a small receiver extension rack designed to hold a spare since I am only flat towing a Jeep?
Are F53 wheels similar to my F350 where the same spare can be used on the front and the rear, just turned around?
thanks,
fred