Transaxle Assemble

Tools Required

• J 35799-A  Fifth Gear Installer. See Special Tools .
• J 22912-01  Split Plate Bearing Puller
• J 35451  Reverse Light Switch Socket. See Special Tools .

Fig 1: Aligning Clutch Hub Grooves
Courtesy of GENERAL MOTORS CORP.
1. Apply GM P/N 1052271 lightly as you assemble each part.
2. Install the following parts onto the input shaft:
   • The third gear
   • The needle roller bearing
   • The synchronizer ring
   • The number 2 hub sleeve assembly
3. Place the synchronizer ring on the gear. Align the clutch hub grooves with the projection on the synchronizer ring.
Fig 2: Installing Selective Snap Ring
Courtesy of GENERAL MOTORS CORP.
4. Choose a selective snap ring that will allow minimum axial play. Refer to Transaxle Specifications (Selective Snap Ring Table)  or Transaxle Specifications (5th Gear Selective Snp Rng Tbl)  or Transaxle Specifications (Thrust Washer Thickness)  or Transaxle Specifications (Selective Bearing Shim Table) .
Fig 3: Identifying Fourth Gear Synchronizer Ring
Courtesy of GENERAL MOTORS CORP.
5. Place the fourth gear synchronizer ring on the gear and align the clutch hub grooves with the projections on the synchronizer ring.
6. Use a J 22912-01  and a press to install the fourth gear and the radial ball bearing.
Fig 4: View Of selective Snap Ring
Courtesy of GENERAL MOTORS CORP.
7. Install the selective snap ring.
Fig 5: Identifying Shifting Key Springs
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8. If you are servicing any hub sleeve assembly, refer to the following procedure:
   1. Position the key springs so that the end gaps are not lined up.
   2. Install the clutch hub and the shifting keys to the hub sleeve.
   3. Install the shifting key springs under the shifting keys.
Fig 6: View O First Gear
Courtesy of GENERAL MOTORS CORP.
9. Install the first gear locking ball in the shaft.
10. Install the thrust washer securely over the locking ball.
11. Install the synchronizer ring on the gear and align the clutch hub grooves with the projections on the synchronizer ring.
12. Install the first gear and the number 1 hub sleeve.
Fig 7: Identifying Selective Snap Ring
Courtesy of GENERAL MOTORS CORP.
13. Choose a selective snap ring that will allow the minimum axial play. Refer to Transaxle Specifications (Selective Snap Ring Table)  or Transaxle Specifications (5th Gear Selective Snp Rng Tbl)  or Transaxle Specifications (Thrust Washer Thickness)  or Transaxle Specifications (Selective Bearing Shim Table) .
Fig 8: Locating Synchronizer Ring
Courtesy of GENERAL MOTORS CORP.
14. Install the following parts:
    • The spacer
    • The synchronizer ring
    • The second gear
    • The needle bearing
15. Install the third driven gear.
Fig 9: Identifying Driven Gears
Courtesy of GENERAL MOTORS CORP.
16. Install the output gear spacer.
17. Install the fourth driven gear and the bearing.
18. Install the magnet.
19. Install the oil receiver with two bolts. Finger tighten the bolts.
20. Install the differential into the transaxle case.
21. Inspect and adjust the side bearing preload. Refer to Differential Replacement .
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.
22. Install the transaxle case.

    Tighten: 

    • Tighten the transaxle case bolts to 29 N.m (22 lb ft).
    • Tighten the oil receiver bolt to 11 N.m (97 lb in).

Fig 10: Locating Shift Fork & Shift Shaft
Courtesy of GENERAL MOTORS CORP.
23. Install the following components together:
    • The input shaft
    • The output shaft
24. Install the following components:
    • The shift shafts
    • The shift fork
25. Place the number 1 shift forks into the groove of the number 1 hub sleeve.
26. Place the number 2 shift forks into the groove of the number 2 hub sleeve.
27. Insert the number 1 fork shaft into the number 1 shift fork hole.
Fig 11: Locating Reverse Shift Fork & Interlock Balls
Courtesy of GENERAL MOTORS CORP.
28. Insert two interlock balls into the reverse shift fork.
29. Install the following components:
    • The number 3 shift fork shaft
    • The reverse shift fork.
Fig 12: View Of Number 2 Shift Fork
Courtesy of GENERAL MOTORS CORP.
30. Install the following components:
    • The number 2 shift fork shaft
    • The shift head
31. Insert the 3 lock bolts.

    Tighten:  Tighten the lock bolts to 16 N.m (12 lb ft).

32. Install the three shift fork shaft snap rings.
Fig 13: Aligning Reverse Idle Gear And Shaft To Idler Gear Mark
Courtesy of GENERAL MOTORS CORP.
33. Install the reverse shift arm.

    Tighten:  Tighten the reverse shift arm bolts to 17 N.m (13 lb ft).

34. Install the reverse idle gear and shaft. Align the shaft to the idler gear mark.
Fig 14: Identifying Sealant Application Areas on Contacting Surfaces
Courtesy of GENERAL MOTORS CORP.
IMPORTANT: Before you install the transaxle case, verify that no sealing material is on the case. Do not drop oil on the contacting surfaces.
35. Apply GM P/N 1052756 Sealant.
36. As soon as the sealant is applied, install the transaxle case.
37. Insert 16 transaxle case bolts.

    Tighten:  Tighten the case bolts to 29 N.m (22 lb ft).

Fig 15: View Of Lock Ball Assemblies
Courtesy of GENERAL MOTORS CORP.
38. Install the lock ball assemblies into the case.
39. Apply GM P/N 1052624 sealant to the lock ball assembly plug threads.
Fig 16: Locating Reverse Idler Gear Shaft Lock Bolt
Courtesy of GENERAL MOTORS CORP.
40. Install the plugs.

    Tighten:  Tighten the plugs to 39 N.m (29 lb ft).

41. Apply GM P/N 1052756 sealant to the reverse idler gear shaft lock bolt.
42. Install the reverse idler gear shaft lock bolt.

    Tighten:  Tighten the bolt to 29 N.m (22 lb ft).

Fig 17: Locating Rear Bearing Retainer
Courtesy of GENERAL MOTORS CORP.
43. Install the output shaft bearing snap rings.
44. Install the snap ring number 2 fork shaft.
45. Install the rear bearing retainer.

    Tighten:  Tighten the rear bearing retainer bolts to 27 N.m (20 lb ft).

Fig 18: Identifying J 35799-A
Courtesy of GENERAL MOTORS CORP.
46. Use a J 35799-A  to install the fifth gear. See Special Tools .
47. Install the following components:
    • The spacer
    • The needle roller bearing
    • The fifth gear and synchronizer ring
48. Support the tip of the input shaft with a spacer in order to raise the transaxle assembly.
49. Install the following components:
    • The number 3 hub sleeve assembly
    • The shift fork
50. Align the synchronizer ring slots with the shifting keys.
51. Install the hub sleeve assembly.
Fig 19: Installing Selective Snap Ring
Courtesy of GENERAL MOTORS CORP.
52. Choose a selective snap ring that allows the minimum axial play. Refer to Transaxle Specifications (Selective Snap Ring Table)  or Transaxle Specifications (5th Gear Selective Snp Rng Tbl)  or Transaxle Specifications (Thrust Washer Thickness)  or Transaxle Specifications (Selective Bearing Shim Table) .
53. Engage the gears.
54. Install the locknut.

    Tighten:  Tighten the locknut to 118 N.m (87 lb ft).

55. Disengage the gears.
56. Stake the locknut.
57. Install the number 3 fork shaft lock bolt.

    Tighten:  Tighten the number 3 fork shaft lock bolt to 16 N.m (12 lb ft).

58. Install the shift and select lever assembly.
59. Apply GM P/N 1052624 to the bolts. Insert the bolts into the shift and select lever assembly.

    Tighten:  Tighten the shift and select lever assembly bolts to 20 N.m (14 lb ft).

60. Install the lock bolt.

    Tighten:  Tighten the lock bolt to 29 N.m (22 lb ft).

61. Apply GM P/N 1052756 in an even 1 mm (0.04 in) bead on the case cover.
62. Install the transaxle case cover.

    Tighten:  Tighten the case cover bolts to 18 N.m (13 lb ft).

63. Install the front bearing retainer.

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

64. Install the backup switch using a J 35451  . See Special Tools .

    Tighten:  Tighten the backup switch to 40 N.m (30 lb ft).

65. Install the VSS into the transaxle case. Secure the VSS with one retaining bolt.

    Tighten:  Tighten the VSS retaining bolt to 11 N.m (97 lb in).

66. Release the fork and bearing.