4R70W

Extension Housing Seal and Gasket

Special Tools:

Special Tool(s)

Removal
1. Raise and support the vehicle.





2. NOTE: The output shaft and driveshaft are a balanced assembly.

Mark the driveshaft flange and the rear pinion flange for correct alignment during assembly.





3. Remove the four bolts.





4. Remove the driveshaft.





5. Disconnect the catalyst monitoring sensor harness connectors. Remove the harness bracket.
6. Remove the transmission insulator and retainer.





7. Use the special tools, remove the extension housing seat.





8. Remove the extension housing and gasket.
1 Remove the bolts and nuts.
2 Remover the extension housing and gasket.

Installation





1. Install the extension housing and gasket
1 Position the extension housing gasket and the extension housing.
2 Install the bolts and nuts.





2. Using the special tool, install the new extension housing seal.
3. Install the transmission insulator and retainer.





4. Install the harness bracket. Reconnect the catalyst monitoring sensor harness connectors.





5. NOTE: The output shaft and the driveshaft are a balanced assembly.

Install the driveshaft.
- Align the index marks and position the driveshaft on the transmission.
- Position the driveshaft to the rear differential.





6. NOTE: To maintain driveshaft balance, install the driveshaft yoke and flange in the original position that was marked during removal.

Install the driveshaft.
1 Install the driveshaft.
2 Install the bolts.
7. Remove the supports and lower the vehicle.