Your Muncie M20 4-speed transmission sold on Ebay on 8-18-09...
Transmission case is stamped: 19N678402 P9H25A
Seller id: hooked95
Seller location: Red Lion, PA
Sale price: $511.00
Buyer id: ski778
Buyer location: York, PA
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=260460585035
Paul