Originally Posted by flewellg
What are the numbers on the tire that Airstream uses on the 31 classic so I can order the correct ones and have them put on before we leave with it? Are they all the same size wheels or does Airstream offer option of larger wheels when they come from the factory?
You are looking at a 2006 Classic?
There are many threads on the truck tire/PMetric (truck tires) vs. ST tires. I would suggest you do a search and make up your own mind after a LOT of reading.
Airstream did have a 16" truck tire mounted on a rim at the JC store when I was up there last year. That leads me to believe that they "unofficially" recognize the problems with ST tires.
I have gone with General extra load P Metric tires after losing 3 fairly new ST tires in a very short period of time - one of the blow outs did a considerable amount of dollar damage to the skin of the trailer. Get a truck type tire with a load rating as close as possible to the comparable ST tire. This requirement seriously limits your choices, but they are out there. Besides General I think that Michelin also has a current high load 15" tire. If you go to 16" rims your choices are greatly expanded - make up your own mind as to you would be happy with the amount of room available in your wheel wells.
Another thing to look for is the manufacture date on the tires. The Generals I put on the trailer were only one month old... there are dealers out there who would have no qualms about putting two year old "new" tires on your trailer.
Pay very close attention to the load rating and pressure metrics of your new tires. Remember, a lower pressure in the tire USUALLY means a softer ride for the trailer....be careful of snake oil salesmen when you visit the tire stores.
I will say that Discount Tire worked with me to find new manufacture appropriately rated tires. Discount Tire also has an extra cost "replacement guaranty" - well worth the cost in my opinion.