Talking with a couple of guys about cars last week and this is what one of them said. He said that he only uses his chassis for a year or 2 at the most, as the steel goes soft after that (Turbo Flex). Mind you he is a guy that will retire a car body because he now uses a new paint scheme and not because the body is stuffed.
I have never thought about this before. I have a couple of chassis the oldest I've had for 8 years and it was used before I got it, so it is probably well over 10 years old. It has had more hits than Elvis, but is still one of my favorite one to use and still handles good and still competitive.
Do you guys replace a chassis just because it is old or just keep them and race it if it still goes good.