Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions

I have probably the first snow blower ariens ever made.  It is a 64 model.  I got iit from a neighbor and I'm 'fixing it up'.  All is well except dealing with the "self locking" hub on the right.  I have never seen one of these before.  It has a 'dog' that floats inside a larger casting hub.  Not knowing for sure what other parts are supposed to be in there...let me descibe what I found.

The large hub has broad teeth inside and the axle has a sleeve that holds a a'dog' that can flop into those teeth in both forward and reverse directions.  Because the engagement toothe on the dog is at an angle the hub disengages when you manually move the blower...but will engage when it is powered in drive.  The parts are loose and I can free them up but what other parts and pieces should I be looking for that might not be there???

Dave