Mark:
Were both bolts tight that held the starter to the bellhousing? I'm wondering why there are bolt thread marks in the mounting hole located by the solenoid in this picture:
The nose doesn't support the weight of the starter at all and only experiences a shear force when the gear contacts the flywheel under normal circumstances...I just can't understand why it would have experienced such a catastrophic event.... Is the shaft the starter gear slides on bent at all as a result? - it doesn't appear to be. Weird...
If all your flywheel teeth are fine and it appears there was good engagement between the starter gear and flywheel (as evident by any witness markes on the starter gear), I would go get another starter and make sure your timing is correct..(kickback??)
- Allen.