Tires past their safe age

[Axle]

Heres something to read and mull over, that is not sponsored by any tire sellers;
http://www.motor.com/article.asp?article_ID=1371

Bottom line, inspect the physical condition of the tires. Unless they've been sitting in the sun, they probably be fine.

Dan Zielinski, Senior Vice President, Public Affairs, for the Rubber Manufacturers Association in Washington, DC, told me that his association "does not recommend a removal date for tires based on age because there's no scientific information to back it up." He explained that extensive studies of thousands of junkyard tires do not back up the notion that tires just deteriorate with time.

Alex.