Johnny; Welcome to the forum. There is a lot of good information available here on the forum. It looks like you have a 17G. I have a 1994 17CB. The G means G=goucho and the CB means center bath. The Goucho has an L shape couch that makes into a bed. The center bath has the bath center left side and a couch across the back. Both are nice units. Now for some of that friendly advice. Bigfoot
did not make the 17.5 until 2004 0r 2005. Yours is a 17 not 17.5. I thought I had a 17.5 until I joined the forum and found out I had a 17.
It looks from the photo that you have the original axle
with a 4"drop. Some of us with the Bigfoot
17 have changed to a straight axle
lifting the trailer 4". I did just that and I'm glad because I drive on some pretty rugged roads. You probably have lots of plans for change already but if you go down forest service or BLM roads and fond your trailer dragging that's how you fix it.