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Transaxle Inspection

WARNING: This page is about a different variant/trim than selected.

Tools Required

    Fig 1: View Of Input Journals
    GM164034Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: If any of the journal surfaces are under specifications, replace the input shaft.
  1. Use a J 26900-2  to measure the outer diameter of the input shaft journal surfaces. See Special Tools .
    • 24.87 mm (0.9791 in) (1)
    • 28.97 mm (1.1405 in) (2)
    • 30.97 mm (1.2193 in) (3)
    • 24.97 mm (0.9831 in) (4)
    2. Fig 2: Checking Input Shaft Runout
    GM164043Courtesy of GENERAL MOTORS CORP.
  2. Use a J 8001  and a J 26900-13  to inspect the input shaft runout. If the runout exceeds 0.05 mm (0.0020 in), replace the input shaft.
    3. Fig 3: Identifying Output Shaft Journals
    GM164049Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: If any of the journal surfaces are under specifications, replace the output shaft.
  3. Use a J 26900-2  to measure the outer diameter of the output shaft journal surfaces (1, 2, 3). See Special Tools .
    1. 32.97 mm (1.2980 in) (1)
    2. 37.97 mm (1.4949 in) (2)
    3. 31.97 mm (1.2587 in) (3)
    4. Fig 4: Measuring Runout On Output Shaft
    GM164052Courtesy of GENERAL MOTORS CORP.
  4. Use a J 8001  and a J 26900-13  to inspect the output shaft runout. If the runout exceeds 0.05 mm (0.0020 in), replace the output shaft.
  5. Inspect the synchronizer rings by turning and pushing on them in order to test the braking action.
    6. Fig 5: Checking Synchronizer Ring Clearance
    GM164057Courtesy of GENERAL MOTORS CORP.
  6. Inspect the synchronizer ring clearance by measuring between the back of the synchronizer ring and the gear spline end. If clearance is less than 0.6 mm (0.024 in), replace the synchronizer ring.
    7. Fig 6: Measuring Clearance Between Hub Sleeve & Shift Fork
    GM164061Courtesy of GENERAL MOTORS CORP.
  7. Use a feeler gage to measure the clearance between the hub sleeve and the shift fork. If the clearance exceeds 1.0 mm (0.0039 in), replace the shift fork or replace the hub sleeve.
  8. Remove the input shaft front seal.
  9. Remove the bearing lock plate.
    10. Fig 7: View of J 23907 & J 29369-1
    GM164103Courtesy of GENERAL MOTORS CORP.
  10. Inspect the input shaft front bearing. If you must replace the bearing, use a J 23907  and a J 29369-1  .
    11. Fig 8: Identifying J 8092 & J 35656
    GM164108Courtesy of GENERAL MOTORS CORP.
  11. Use a J 8092  and a J 35656  to install the bearing. See Special Tools .
    12. Fig 9: Removing Output Shaft Front Bearing With J 23907 & J 29369-2
    GM164113Courtesy of GENERAL MOTORS CORP.
  12. Inspect the output shaft front bearing. If you must replace the bearing, use a J 23907  and a J 29369-2  .
    13. Fig 10: Identifying J 8092 & J 35657
    GM164116Courtesy of GENERAL MOTORS CORP.
  13. Install the bearing use a J 8092  and a J 35657  . See Special Tools .
  14. Use a J 33183  to install the input shaft front seal. See Special Tools . Lightly coat the seal lip with GM P/N 1051344.
    15. NOTE: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
  15. Install the bearing lock plate.

    Tighten:  Tighten the bearing lock bolts to 11 N.m (97 lb in).

    16. Fig 11: Using Screwdriver To Remove Seal
    GM164124Courtesy of GENERAL MOTORS CORP.
  16. Inspect the RH differential oil seal and inspect the LH differential oil seal. If replacement is necessary, remove the seal with a screwdriver.
    17. Fig 12: Installing Differential Seal
    GM165607Courtesy of GENERAL MOTORS CORP.
  17. Use a J 35553  to install a new seal flush with the case surface. See Special Tools . Lightly coat the seal lip with GM P/N 1051344.
    18. Fig 13: View Of J 35399
    GM164125Courtesy of GENERAL MOTORS CORP.
  18. Inspect the RH differential bearing cap and the LH differential bearing cap. If replacement is necessary, use a J 35399  to remove the bearing caps. See Special Tools .
    19. Fig 14: Identifying J 35552
    GM165591Courtesy of GENERAL MOTORS CORP.
  19. Use a J 35552  to install the bearing caps. See Special Tools .
  20. Inspect the control shaft cover seal. If replacement is necessary use the following procedure:
    1. Remove the old seal with a screwdriver.
    2. Tap in a new seal.
    3. Coat the lip of the seal with GM P/N 1051344.
    21. Fig 15: Removing Speedometer Seal
    GM164127Courtesy of GENERAL MOTORS CORP.
  21. Inspect the speedometer seal. If replacement is necessary remove the old seal.
    22. Fig 16: Measuring Seal Depth
    GM165627Courtesy of GENERAL MOTORS CORP.
  22. Coat the new seal with GM P/N 1051344.
  23. Install the seal to a depth of 25 mm (0.98 in).
  24. Inspect the reverse restrict pin. If replacement is necessary, perform the following procedure:
    1. Remove the reverse restrict holder.
    2. Using a pin punch and a hammer, driver out the slotted spring pin.
    3. Replace the reverse restrict pin.
    4. Driver in the slotted pin.
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