GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2009 🢒 LaCrosse 🢒 Transmission 🢒 Automatic Transmission - 4T65-E 🢒 Case Extension Replacement

Removal Procedure
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.
  2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  3. Remove the right drive axle from the transaxle. Refer to Wheel Drive Shaft Replacement.
  4. Remove the transaxle brace. Refer to Transmission Brace Replacement.
  5. Remove the vehicle speed sensor. Refer to Vehicle Speed Sensor Replacement.

    6. Object Number: 10517 Size: SH
  6. Remove the case extension housing bolts (5).
  7. Remove the case extension housing (6) with the axle seal and the O-ring (8).

Installation Procedure

    Object Number: 10517 Size: SH
  1. Install the O-ring (8) to the case extension housing (6).
  2. Install the case extension housing (6) with the axle seal and the O-ring (8).

    3. Caution: Refer to Fastener Caution in the Preface section.

  3. Install the case extension housing bolts (5).

    4. Tighten
    Tighten the bolts to 36 N·m (27 lb ft).

  4. Install the vehicle speed sensor. Refer to Vehicle Speed Sensor Replacement.
  5. Install the transaxle brace. Refer to Transmission Brace Replacement.
  6. Install the right drive axle to the transaxle. Refer to Wheel Drive Shaft Replacement.
  7. Lower the vehicle.
  8. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.

    9. Caution: Do NOT overfill the transaxle. The overfilling of the transaxle causes foaming, loss of fluid, shift complaints, and possible damage to the transaxle.

  9. Check and fill the transaxle as necessary.
  10. Inspect for fluid leaks.