GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2006 🢒 GMC Sierra Denali 🢒 Transmission/Transaxle 🢒 Automatic Transmission - Allison 🢒 Torque Converter Fluid Seal Replacement

Tools Required
    • J 24171-A Seal and Dust Shield Remover
    • J 43772 Torque Converter Seal Installer

Removal Procedure

    Object Number: 659305 Size: SH
  1. Remove the torque converter from the transmission. Refer to Torque Converter Replacement .
  2. Obtain J 24171-A and install the tip (3) with a 90 degree hook onto the end of the slide-hammer (1).
  3. Position the 90 degree hook behind the rear face of the seal outer case (2). Remove the torque converter seal using the slide-hammer.
  4. Inspect the seal bore for scratches. Remove any scratches in the seal bore using crocus cloth.

Installation Procedure

    Object Number: 659308 Size: SH
  1. Install the new seal (2) onto the J 43772 . Position the seal so the seal lip is outward and the face of the steel case is against the driving face (1) on the tool.

    2. Object Number: 659313 Size: SH
  2. Slide J 43772 over the turbine shaft and the stator shaft until the seal starts into the seal bore. Strike the J 43772 with a mallet (1) to drive the seal into the seal bore. The seal is installed correctly when the shoulder of the J 43772 squarely contacts the outer surface of the oil pump.
  3. Install the torque converter into the transmission. Refer to Torque Converter Replacement .