For 1990-2009 cars

# Information on Changes to Manual Transaxle Clutch Pressure Plate Cover Assembly and Clutch Driven Disc Assembly

Subject: | Information on Changes to Manual Transaxle Clutch Pressure Plate Cover assembly and Clutch Driven Disc Assembly

Models: | 1991-1996 Saturns equipped with MP2 or MP3 manual transaxles built before including VIN TZ272262.

### Purpose

This bulletin provides information on design changes to the clutch pressure plate cover assembly and clutch driven disc assembly. This change will be implemented in production and will be used to service past model vehicles.

The changes to these parts are:

• | Clutch Driven Disc Assembly - The inner and outer diameter of the clutch disc friction surface for the clutch driven disc assembly has increased. Also, the new clutch disc has a new friction material with improved wear and strength characteristics.

• | Clutch Pressure Plate Cover Assembly - The clutch pressure plate cover assembly has increased clutch-disc contact surface. Other changes to the clutch pressure plate cover assembly include a revise stamped pressure plate cover and a change in pressure plate material from modular iron to gray iron for improved thermal conductivity characteristics.

The clutch driven disc assembly and clutch pressure plate cover assembly used in manual transaxles, installed in vehicles built after and including VIN TZ72262 include the above mentioned changes, and will be referred to as 2nd design in this bulletin. The clutch pressure plate cover assembly and clutch driven disc assembly used in manual transaxle vehicles, built before and including VIN TZ272261 will be referred to as 1st design in this bulletin.

Notice: Mismatching of clutch assembly components will result in overhang of the clutch disc, causing and uneven wear and reduction of clutch disc life.

Due to changes in the friction surface dimensions between the 1st and 2nd designs of the clutch pressure plate assembly and clutch driven disc assembly, always make sue to use components of the same design together. Never use a 1st design clutch pressure plate assembly with a 2nd design clutch driven disc assembly or a 2nd design clutch pressure plate assembly with a 1st a design clutch driven disc assembly.

When servicing clutch components it will be necessary to resurface the flywheel because of different wear patterns between 1st and 2nd design clutch driven disc assemblies. (Refer to technical information bulletin 95-T-37 [corporate bulletin number 587201] for flywheel resurfacing procedure.)

Important: The changes to the clutch driven disc assembly and the clutch pressure plate cover assembly will not affect the clutch pedal load or modulation of the clutch.

### Parts Information

21001333 | Disc Asm - Clu Drvn (1t Design)
21120453 | Disc Asm - Clu Drvn (2nd Design)
21001160 | Cover Asm - Clu Press (1st Design
21120455 | Cover Asm - Clu Press (2nd Design)