This thread seems to say you can just replace the pulley with the new version. An Exmark service bulletin attached shows other things being replaced at the same time, such as the bracket. Has anyone here replaced this? Any info?
https://www.lawnsite.com/threads/exmark-commerical-30-aluminum-idler-pulley.460252/
https://extranet.exmark.com/techdocs/All Service Bulletins/16-03.pdf
Old pulley...
Replacing idler pulley (s) on exmark 30
https://www.lawnsite.com/threads/exmark-commerical-30-aluminum-idler-pulley.460252/
https://extranet.exmark.com/techdocs/All Service Bulletins/16-03.pdf
Old pulley...
Replacing idler pulley (s) on exmark 30