I think the best thing you'll find is to learn the serial designations for each type of transmission.
The gears are identifiable by the serial number on the transmission. Of course, you'll need a cross reference for the serial numbers so you know what you're looking at, as well.
__________________
"¿ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"
|