Rear sprocket outer support

[Jcadwell]

I'm considering taking a look at the cletrac (I assume HG42) in the link below.  I noticed that the rear sprocket doesn't have the outer support (outer trunnion bearing?) shown in the pictures.  Did they ever come without them, or is it missing from this example?  I previously owned an OC-3, and have never seen one without that support.  The paint on the carriage doesn't look like the part has been on recently.

http://kpr.craigslist.org/grd/5368229457.html

[Bill Kycia]

Something looks a little funky there!I think the supports are missing. Hopefully others will weigh in.  Bill in CT.

[Blake Malkamaki]

Looks to be missing.

[Lowspeedlife]

I've never seen one without the outer trunion support bearing bracket. The early versions did not have a bearing but did have a trunnion support. The picture of the right side looks like something has been removed from that area, before it was painted. It also has a piece of metal on each track frame angled up, I guess to keep mud from collecting on the track frame. It also appears to have an Avery hood & grill as the hood does not extend to the front of the machine & the grill & side panels appear to be one piece.

Scott R.