GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Important: For manual transmission applications, note the position and direction of the engine flywheel before removal. The flywheel does not use a locating pin for alignment. Mark or scribe the end of the crankshaft and the flywheel before component removal. The engine flywheel must be reinstalled to the original position and direction. The engine flywheel will not initially seat against the crankshaft flange, but will be pulled onto the crankshaft by the engine flywheel bolts. This procedure requires a 3-stage tightening process.


    Object Number: 1430042  Size: SH
  1. Remove the transmission. Refer to Transmission Replacement in Manual Transmission - Tremec 6-Speed.
  2. Remove the clutch assembly (3, 4). Refer to Clutch Assembly Replacement in Clutch.

  3. Object Number: 1199287  Size: SH
  4. Mark or scribe the end of the crankshaft and the flywheel.

  5. Object Number: 1199288  Size: SH
  6. Remove the engine flywheel. Refer to Engine Flywheel Removal .
  7. Clean and inspect the engine flywheel. Refer to Engine Flywheel Cleaning and Inspection .

Installation Procedure

Important: For manual transmission applications, note the position and direction of the engine flywheel before removal. The flywheel does not use a locating pin for alignment. Mark or scribe the end of the crankshaft and the flywheel before component removal. The engine flywheel must be reinstalled to the original position and direction. The engine flywheel will not initially seat against the crankshaft flange, but will be pulled onto the crankshaft by the engine flywheel bolts. This procedure requires a 3-stage tightening process.


    Object Number: 1199287  Size: SH
  1. Align the mark or scribe on the crankshaft with the mark or scribe on the existing flywheel.
  2. If installing a new flywheel, refer to Engine Balancing .

  3. Object Number: 1199288  Size: SH
  4. Install the engine flywheel. Refer to Engine Flywheel Installation .

  5. Object Number: 1430042  Size: SH
  6. Install the clutch assembly (3, 4). Refer to Clutch Assembly Replacement in Clutch.
  7. Install the transmission. Refer to Transmission Replacement in Manual Transmission - Tremec 6-Speed.