I blew mine at 35,000 miles. I was doing burnouts with slicks on all day, redline clutchdrops, autoX, in short being a real hooligan. Final straw was a burnout with the wheels turned.
http://www.msprotege.com/forum/showthread.php?threadid=79770
http://www.msprotege.com/forum/showthread.php?threadid=79770