"I am interested in the FMCA/Michelin deal. How does that work?"
First we assume you are a FMCA member.
I just bought tires for my toad using the program. Here is what I did. Get the part number for the tire you want to buy from a dealer who is participating in the program. You can go hear to find a dealer. Michelin RV Tires | A Better Way Forward
When you have the partnumber (I got the deaalers price for the tiers to) call FMCA and speak to the people in the Miclin tire program office. They will tell you your cost for that tire. This doesn't include the usual mounting and balancing ect.
You can find out more at the FMCA web site. They have a list of part numbers but I found it hard to find the one I was looking for when I had it in my hand. That is why I said get it from the dealer that way you have the right number for the tiers you want to buy. I saved over $175.00 on the tires for my toad.
There are a few more things like registering a credit card to be used for the purchase. It is really pretty simple. If you have questions ask.