Ok, so the interchange manual says that the 2004 trans is a one year only part.
But, from what I have been reading, the 2003 and 2004 trans is the same (meaning same wiring harness and plug as well as the solenoids, etc) except for the converter that was shipped with the unit from GM. They have a different K-factor (stall speed).
Can anyone confirm or deny if this trans will work in my '03 GS?
Thanks in advance.