GM Service Manual Online
For 1990-2009 cars only

Transmission General Description Synchronizers

The transaxle is designed for the use with transverse-mounted engines, and therefore incorporates the differential. It is similiar to other transaxles in its general construction features. The case is made of aluminum for a high strength-to-weight ratio. The design incorporates the familiar parallel dual shaft arrangement which minimizes weight and conserves space. All forward gears are synchronized, while reverse uses the sliding idler gear arrangement. The synchronizers for 1st and 2nd gears are located on the output shaft. The input shaft carries the synchronizers for 3rd, 4th, and 5th gears. This proven design offers good shift feel with low idling noise.