The right-side idler on my 450C has a lot of play. I noticed it this weekend when my grandson was running it. I'm going to check it out tomorrow evening. Tonight I was studying the repair manual and parts list and saw the wear strip kit, part # 144392A3. Anyone familiar with this kit? It has rubber flex bushings, wear strips with no mounting holes, etc. None of the parts in the pictures look anything like the idler setup on my machine. I was getting ready to start prepping for a concrete floor in the barn. Hopefully I can get it ready to go fairly quickly.
I found them, they're part of the idler hubs. Not shown in my OEM parts book but shown in other diagrams.