Toro 20334 Personal Pace Mower - Strange Noise When Engaging/Disengaging Drive

[Rivets]

Part number 17 is a retaining ring which holds the bracket ( pivot arm), bearing hoc, and gear together on the shaft.

 

[cruise42]

Rivets...when I had retaining ring off to replace drive pinion I gave Pivot Arm a pretty good tug...it didn't move...any thoughts ?

 

[Rivets]

Snap ring on bearing hoc or bracket is stuck on bearing hoc.