Ham, You must of got an early 2002, my castor wheels on a 2001 model broke of also but when I got my 2002 model they had been streagthened with extra steel, now on an 04 model the piece of hollow rod used for pinning the air bags up broke off allowing the air bag to fully expand, we were using it with them pinned though probably not such a good idea. Do you also have problems with the draper drive motors blowing the front seal and leaking oil, hows the harvest in S.A.IJ