GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2009 🢒 DTS 🢒 Transmission 🢒 Automatic Transmission - 4T80-E 🢒 Differential Carrier Replacement

Removal Procedure
  1. Remove the case extension. Refer to Case Extension Replacement.

    2. Object Number: 11841 Size: SH
  2. Rotate the manual shaft (16) counterclockwise in order to place the transmission in park and prevent the differential from rotating.

    3. Object Number: 687629 Size: SH
  3. Remove the four 15 mm differential bolts (119).
  4. Remove the differential carrier (110).

Installation Procedure

    Object Number: 15506 Size: SH
  1. Locate the dowels on the final drive carrier (100) and insert these dowels into the holes in the differential carrier (110) for proper assembly.

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

  2. Install the differential carrier bolts (119).

    3. Tighten
    Tighten the bolts using a star pattern to 70-76 N·m (52-56 lb ft).

  3. Install the case extension. Refer to Case Extension Replacement.