Welcome Dr. Sam to the forum and irv2.
Back in the 90's a tape came with the black case of written material supplied by Newmar and other MFG's that covered general information and you probably had more information in your head than what was supplied on tape or papers if you have been RVing for a few years.
In the 90's they came out with a disk with the general information which may have been better but some thing I never saw because all mine were tapes.
We now have a COM_NET2
network that is supplying more info than we ever had with more detail for each individual coach but I find on a recent thread some material may not be correct in the low end Owners Guide because the same guide is covering 8 models in that lineup.
The Com_NET is the best we have right now and I have posted many items out of it in QT's 1 & 2
and the new # 3.
I have post threads
on how to access the COM_NET on different threads thru out the Newmar forum.
Many COM_NET links have wound up in other forums because of their relation to common things in a RV.
Newmar has TSB AND PSB related to products and problems that they have issued.
Your coach build information is their also. You can spend hours within this network.
Yes Newmar had options for spare tires back in the 90's they had a spare tire in a tray off the rear bumper that pulled out whan you released a latch and my 03 coach had a tire rack under the rear of coach that would drop down with cable release from rear number plate.
Newmar has dropped having a spare and I can see why, I never had to use my spare in any of the coach's I had until recently when I used it because someone sliced my tire. Its more weight to carry, $500 tire off the cost of coach that most of us will never have to used.
Than you also have many knowledgeable people on the forums that will answer many of your questions and solve a problem or steer you as how to resolve the problem.
But allot is left up to you to dig into the many links provided and reading them to give you a pretty good idea of how things work on your coach.
We have a RV Systems & Appliances forum
that has many links for trouble shooting those problems. Many of the forums have stickies
that have important links to resolve a problem and should not be over looked.
You may notice I have links in my signature that I use constantly and that you can use to move around the forums and get quick links to information.
You also have a search engine
at top of all forums for info in that particular forum and one at the top of irv2 forum
for the whole forum searching.
SO have fun and after you have
read all that I have provided you will be answering our or others questions in short order.