[MylilBowTie]

It came up as a th400. The serial number should be part of the vin number and when it was built. To get a th475 it has to be pretty heavy duty to need one. Not saying your truck isnt heavy duty. The only th475's that I see are heavy motor home chassis, school buses, and the super goose I would assume would be for a fithwheel type 1ton.

I dont have anything for decoding the date codes and things like that. Its mainly just the year, vehical type, and transmission type.