99ImprezaOSport Posted April 17, 2010 Share Posted April 17, 2010 I've found this information and have been told to list it here too... Transmission identification codes start with a "T" and an example would be: TY856WB1AA "T" = transmission code "Y" = that it is a manual awd gearbox "85" = the transmission classification...in the case of manual gearboxes this number indicates the gear shaft spacing in millimeters. 6-speed transmissions use an 85mm shaft spacing while the current generation of 5-speed transmissions use a 75mm shaft spacing. "6" = some reference to the transmission case. "6" is used for 6-speeds, "4" is used for 8-bolt 5-speeds, "2" for 4-bolt Impreza 5-speeds, "5" for Forester 8-bolt 5-speeds, "3" for 4-bolt Forester 5-speeds, and "7" for some Legacy turbo 8-bolt 5-speeds. "W" = transmission specification. "W" is 6-speed, "V" is 5-speed, "Z" = AT with MPT, "Y" = AT with VTD, etc. "B1AA" = indicates various details about the equipment such as center diff. type, front LSD, etc. and also about minor production changes. Link to comment Share on other sites More sharing options...
Recommended Posts