GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Chevrolet
🢒
2009
🢒
TrailBlazer - 4WD
🢒
General Information
🢒
General Information
🢒 Case Extension Assembly Replacement
Removal Procedure
Raise and suitably support the vehicle. Refer to
Lifting and Jacking the Vehicle
.
Support the transmission with a transmission jack.
Place a drain pan under the vehicle.
Remove the propeller shaft. Refer to
Rear Propeller Shaft Replacement
.
Remove the transmission mount. Refer to
Transmission Mount Replacement
.
Remove the case extension bolts (1).
Remove the case extension (2).
Remove and discard the case extension O-ring seal (3).
Installation Procedure
Install a new case extension O-ring seal (3).
Caution:
Refer to
Fastener Caution
in the Preface section.
Install the case extension (2).
Install the case extension bolts (1) and tighten to
45 N·m (33 lb ft)
.
Install the transmission mount. Refer to
Transmission Mount Replacement
.
Install the propeller shaft. Refer to
Rear Propeller Shaft Replacement
.
Remove the drain pan and the transmission jack.
Lower the vehicle.
Fill the transmission to the proper level with DEXRON® VI transmission fluid. Refer to
Transmission Fluid Check
.