GM Cadillac Deville_Fleetwood_ELD_Seville 1990-1998

Extension Housing Seal (in vehicle)

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REMOVAL & INSTALLATION




NOTE
Some special tools are required to perform the repair procedure.

J 42066 Rear Hub holding tool
 
J 42080 Case extension seal installer.
 




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Fig. Install this special tool to hold the propeller shaft flange



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Fig. Using the special seal installer to install the case extension seal

  1. Remove the transmission mount.
  2.  
  3. Remove the propeller shaft coupling bolts and pry the coupling away from the flange.
  4.  
  5. Install the tool J 42066 onto the drive flange and remove the nut using the special tool and a 30 mm deepwell socket.
  6.  
  7. Remove the drive flange from the transmission output shaft.
  8.  
  9. Unbolt the catalytic converter support bracket bolts and remove the bracket.
  10.  



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Fig. Remove the catalytic converter support bracket bolts

  1. Unplug the transmission speed sensor electrical connector.
  2.  
  3. Remove the speed sensor bolt and sensor with the seal.
    1. Use hand pressure to twist sensor while pulling outward. Do not pry on the sensor.
    2.  

  4.  
  5. Remove the rear oxygen sensor harness clips from the case extension.
  6.  
  7. Remove the case extension bolts and the extension. Remove the gasket.
  8.  
  9. Pry out the seal from the extension.
  10.  



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Fig. The transmission case extension and related parts



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Fig. The transmission case extension bearing and seal

  1. Use a press and a suitable size spacer to press the bearing out from the rear of the case extension, if necessary.
  2.  

To install:

  1. Press the bearing in from the rear of the case extension, if removed.
  2.  
  3. Install the seal to the case extension using special tool J 42080 or equivalent.
  4.  
  5. Replace the case extension gasket, install the extension, and tighten the bolts to 23 ft. lbs. (32 Nm).
  6.  
  7. Install the rear oxygen sensor harness clips to the extension housing.
  8.  
  9. Install the speed sensor and seal and tighten the bolt to 78 inch lbs. (9 Nm).
  10.  
  11. Plug in the electrical connector.
  12.  
  13. Install the catalytic converter support bracket and tighten the bolts to 15 ft. lbs. (20 Nm).
  14.  
  15. Install the drive flange to the transmission output shaft and fasten tool J 42066 or equivalent onto the flange.
    1. Use a new service replacement nut.
    2.  
    3. Use J 42066 to hold the drive flange while using a 30 mm deepwell socket.
    4.  
    5. Tighten the nut to 74 ft. lbs. (100 Nm).
    6.  

  16.  
  17. Install the propeller shaft coupling to the flange and tighten the bolts to 70 ft. lbs. (95 Nm).
  18.  
  19. Install the transmission mount, and check and adjust the transmission fluid level.
  20.  

 
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