GM Service Manual Online
For 1990-2009 cars only

    Object Number: 1235488  Size: SH

    Note: Except as noted, a low and reverse clutch housing, 4WD is installed using the same procedures as used when installing a low and reverse clutch housing, 2WD.

  1. Install a new gasket (2) onto the transmission case (3).
  2. For a 2WD transmission, make sure the output shaft turns with the output speed sensor (OSS) reluctor wheel. For a 4WD transmission, install the output shaft bearing spacer.
  3. Align the low and reverse clutch housing with the transmission case locating pin (4) and park pawl pin (5).
  4. Install the low and reverse clutch housing.
  5. For a 2WD transmission, turn the OSS reluctor wheel through the OSS hole to make sure the output shaft turns with the reluctor wheel.

  6. Object Number: 1235485  Size: SH
  7. Hand install 4 bolts (1).
  8. Evenly draw down bolts (1) until the low and reverse clutch housing seats on the transmission case.
  9. Hand install 12 bolts (2).
  10. Caution: Refer to Fastener Caution in the Preface section.

  11. Tighten the bolts (1) and bolts (2) to 56 N·m (42 lb ft).