if not, this is the main culprit with the opposite gear's teeth sheared off too. Just working out how much each gear costs, mixed with £120 gasket set, 4litres oil, 3litres coolant...
http://imageshack.us/photo/my-images...243916493.jpg/
I am VERY worried about putting it all back together.. around the side parts. Proper FML as I got anoyed and didnt label or bag the last sets of screws.

I also have a small ballbearing which literally appeared from nowhere. Any ideas anyone? Its about 6mm in diameter silver ball