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Model	Years	Speeds	Drive Train	Trans Model

STS	2004-09	5 Spd	RWD, AWD V6 2.8L 3.6L V8 4.6L	5L40E, 5L50E
STS	2005-11	6 Spd	RWD V8 4.4L	6L80
STS	2006-13	6 Spd	RWD, AWD L4 2.0L V6 3.0L 3.6L V8 4.6L	6L45, 6L50