I think in this case, your best bet would be to contact your Greenfield agent and have a talk to them.
The gears may be available separately now and could save you some dollars in the process if this is the case.
We have to remember that a lot of these parts lists are old now and things do tend to change.
Some part numbers change, some new improved parts or repair kits become available and are not listed on the old lists.
I have found this out personally and tend to use these old parts lists as a guide only.
