These are the weld on brackets that go on the lower tiller support that the lift arms attach to. I ordered these from extreme motor works. I got a mule drive from a junked 682 and straighten the pulley brackets. Sorry about all the post but my iPhone won't let me load but one pic at a time. If you need any measurements from any of the pieces let me know and I'll try to get them for you

Forgot to add the pic for the above post