GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 36850 Assembly Lubricant


    Object Number: 28426  Size: SH
  1. Refer to the rear unit end play measurement taken during disassembly. If the rear unit end play measurement was incorrect, use the removed selective thrust washer (674) and the Output Shaft Selective Thrust Washer Specifications table in order to select the correct selective thrust washer. Refer to End Play Specifications .
  2. Important: One side of the output shaft selective thrust washer (674) is machined completely flat with no rounded edges. This side must face up.

  3. Install the output shaft selective thrust washer (674).
  4. Retain with J 36850 or equivalent.
  5. Important: During the following installation procedure, align the low and reverse band tab with the low and reverse band servo pin hole.

  6. Install the low and reverse band (657).

  7. Object Number: 28427  Size: SH
  8. Install the center support spacer (643) into the groove above the low and reverse band (657). The center support spacer opening should be placed at the nine o'clock position.