I agree with Paul, nobody really had any clue nor cared how long the cars would last. However, machinery back then was built with the intent of maintenane and repair. Unlike modern cars, the idea of going back in there and replacing worn out parts was incorporated in the design process. Also, there was a lot of over-design as mentioned before. Part of the reason was that it was harder back then to do exact stress calculations and design the parts in the "just" safety factor. Another reason was that the design criteria was very much different back then, especially for the manufacturers that respected themselves. So, I think that the designers of these cars back then considered the cars like many types of aircraft. As long as you maintain it, it will keep on going. You may have noticed that a 20 or 30 or more year old aircraft does not lose its value, due to the high standards of maintenance. I think that this is how many engineers would view their products. As for the radial tires exerting higher forces, that's hard to swallow. The radials have more flexible sidewalls, so the forces should be lower if anything. The corossion sounds like a better possibility. D^2 Quoting RandalPark@xxxxxxx: > You make many good points, but you won't convince me that the manufacture > intended for our cars, or any others, to last 40 plus years. If they did, > parts would not be pulled off the shelves and discontinued after 10 years. > > What the manufacturer planned and what we Imperial owners do are two > different things. That said, keeping a 40 year old Imperial on the road isn't > easy. After the first 5 or 10 years, it has a lot more to do with the owner > than the manufacturer. Parts, including wheel rims, wear out. This happens > from age, mileage/use, and exposure to the air. The last one of these is the > one that we have the most trouble with. > > I'd say if our car's creator planned on them lasting this long, they would > have done a lot more to keep them from rotting away due to exposure to the > atmosphere. The cars were warranted for 5 years or 50,000 miles. For me, that > pretty much tells the story. > > Paul > ----------------- http://www.imperialclub.com ----------------- This message was sent to you by the Imperial Mailing List. Please reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be shared with everyone. Private messages (and attachments) for the Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm