Small Engines (Lawn Mowers, etc.): Where Can I Find Sears Transaxle Parts, sears craftsman, clarks summit pa

Question
My 21 year old Sears lawn tractor transaxle died and Sears no longer carries parts for it (understandably).  I'm not having much luck trolling the Internet either - can you point me to a few good sources for Sears transaxle parts?

Specifically I'm looking for these 2 transaxle parts for a Sears/Craftsman 14 HP yard tractor, model # 917.255830 YT 14 twin 5 speed.

1. Sears part # 105926X Gear Assembly Combination, 12 teeth & 35 teeth
2. Sears part # 105927X Idler Shaft

Transaxle part # is 4150-6, Sears part # for transaxle is 105877X.

Thanks in advance.
JoeP
Clarks Summit, Pa.  18411

Answer
Foote 4150-6 is the model of the transaxle.  Try a search for Foote transaxle.  M&D mower list the transaxle with a diagram and part numbers. They may be able to get the parts but I would shop around for the best deal.

Here is one link:

http://m-and-d.com/pdfs/foote/4150-4_-6_-8_-10_-13.pdf

Let me know if this helps.
Eric