Robert, It's not good to keep the tires in one spot for long periods.
I had my car stored for eight months while I served in Desert Shield/Storm.
When I got back to the states. I was driving about 65mph and I had a blow out. It pulled my car hard to the right(because of the rapid air pressure drop), I turn the wheel hard left to keep for going off an embankment. I slid sideways for while, while looking at a driver in the next lane though his passenger side window!!!!! You should have seen his face

When I final came to a stop I looked at the tire, there was a half dollar size hole in the sidewall of my BFG's.
This is what can happen when you let the car sit too long in one spot and all the weight weaking the sidewalls.
After that incident I replaced the rest of the tires the nextday.
I recommend moving the car around if possible or buy some cheap rims to use.
[ November 10, 2002, 08:49 PM: Message edited by: Rich A ]