GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2006 🢒 TrailBlazer - 2WD 🢒 Transmission/Transaxle 🢒 Manual Transmission - Aisin AY6 🢒 Counter Gear Shaft Assemble

Tools Required

DT-47723 Output Shaft Bearing Installer


    Object Number: 1413974 Size: SH
  1. Apply lubricant GM P/N 89021806 (Canadian P/N 89021807) and install the following components:
    2. • the 2nd gear bearing (135)
    • the 2nd gear (200)
    • the 2nd gear synchronizer inner cone (96)
    • the 2nd gear synchronizer outer cone (97)
    • the 2nd gear outer blocker ring (98)
    • the 1st/2nd gear synchronizer sleeve (117)

    Object Number: 1467825 Size: SH
  2. Using a hydraulic press and DT-47723 , install the 1st/2nd gear synchronizer sleeve with the boss side facing 2nd gear. The synchronizer ring set and transmission clutch hub are to be aligned when installing the transmission clutch hub assembly.

    3. Object Number: 1504136 Size: SH

    Important: The retaining ring is a selected fit. Always install a NEW retaining ring.

  3. Select the maximum thickness retaining ring that will fit in the groove. Refer to Countershaft Front and Rear Bearing Retaining Ring Specifications .

    4. Object Number: 1413965 Size: SH
  4. Install a NEW snap ring.

    5. Object Number: 1413948 Size: SH
  5. Apply lubricant and install the following components:
    6. • the 1st gear outer blocking ring (98)
    • the 1st gear synchronizer outer cone (97)
    • the 1st gear synchronizer inner cone (96)

    Object Number: 1413947 Size: SH
  6. Apply lubricant, install and align the 1st gear bearing (134), 1st gear (199) and the reverse gear spline (112).

    7. Object Number: 1467827 Size: SH
  7. Using a hydraulic press and DT-47723 , install the reverse gear spline (112).

    8. Object Number: 1413945 Size: SH
  8. Apply lubricant and install the reverse gear blocking ring (122).
  9. Install the ball (194) to the countershaft.
  10. Apply lubricant and install the reverse gear bushing bearing (133).
  11. Apply lubricant. Align and install the synchronizer sleeve and reverse gear (206) together.
  12. Apply lubricant. Install the reverse gear bushing (114) with ball.
  13. Install the counter gear front bearing (128) with groove facing forward.

    14. Object Number: 1467830 Size: SH
  14. Using a hydraulic press and DT-47723 , install the counter gear front bearing.

    15. Object Number: 1504139 Size: SH

    Important: The retaining ring is a selected fit. Always install a NEW retaining ring.

  15. Select the maximum thickness retaining ring that will fit in the groove. Refer to 1st and 2nd Gear Synchronizer Retaining Ring Specifications .

    16. Object Number: 1413942 Size: SH
  16. Install a NEW snap ring (142).