Hi Queenslandryano, and a warm welcome to the forum. grin
It's really nice to welcome another Scott Bonnar owner on board, as we all like to learn new things and tinker here. wink

Unfortunately, I am the bearer of bad tidings....the replacement metal stamped gear that we used to recommend as a replacement, is now out of production...the business owner has now retired and his business is now defunct.
I don't know where you will source one...I only wish I did...
Would be a great opportunity for someone to tool up and re-produce them...as, what the failure does, is render the machine as a very heavy push mower. cry

Once again, :welcome: to OutdoorKing.
cheers


Please do not PM me asking for support. Please post your questions in the appropriate forums, as the replies it may receive may help all members, not just the individual member.
Kindest Regards, Darryl grin