Input Shaft Disassemble

Special Tools

• J 22912-B:  Split Plate Bearing Puller
• J 44749:  Split Plate Bearing Gear Puller

For equivalent regional tools, refer to Special Tools .

Fig 1: View Of 5th/6th Gear Synchronizer Hub Snap Ring
Courtesy of GENERAL MOTORS CORP.
NOTE: Inspect the input shaft subassembly before disassemble. Refer to Gears and Shafts Cleaning and Inspection .
1. Remove the 5th/6th gear synchronizer hub snap ring (163).
Fig 2: Removing 6th Gear & Synchronizer
Courtesy of GENERAL MOTORS CORP.
NOTE: Place the edge of gear on press plate.
2. Using a hydraulic press and J 44749:  bearing gear puller, remove the 6th gear and the synchronizer as a unit.
Fig 3: View of 5th/6th Gear Assembly
Courtesy of GENERAL MOTORS CORP.
NOTE: Before removing sleeve (118), cover components in order to keep the ball and spring from ejecting loose.
3. Remove the following components as an assembly:
   • The 5th/6th gear synchronizer sleeve (118)
   • The 5th/6th gear synchronizer hub (124) including insert (119), detent ball (127) and spring (123)
   • The 5th gear synchronizer blocking ring (121)
   • The 6th gear (201)
   • The 6th gear bearing (131)
   • The 6th gear bearing spacer (189)
Fig 4: View Of 3rd Gear & Components
Courtesy of GENERAL MOTORS CORP.
4. Remove the 6th gear snap ring (170).
5. Remove the 3rd gear thrust washer (113).
6. Remove the locating pin (192).
7. Remove the 3rd gear assembly which includes:
   • The 3rd gear (197)
   • The 3rd gear blocking ring (104)
8. Remove the 3rd gear bearing (132).
Fig 5: View Of 3rd/4th Gear Spacer & Snap Ring
Courtesy of GENERAL MOTORS CORP.
9. Remove the 3rd/4th gear spacer (190).
10. Remove the snap ring (156) and discard.
Fig 6: Removing 4th Gear & Synchronizer
Courtesy of GENERAL MOTORS CORP.
NOTE: Place the edge of gear on press plate.
11. Using a hydraulic press and J 22912-B:  bearing puller, remove the 4th gear and the synchronizer as a unit.
Fig 7: View of 3rd/4th Gear Assembly
Courtesy of GENERAL MOTORS CORP.
NOTE: Before removing sleeve (118), cover components in order to keep the ball and spring from ejecting loose.
12. Remove the following components as an assembly:
    • The 3rd/4th gear synchronizer sleeve (118)
    • The 3rd/4th gear synchronizer hub (116) including insert (119), detent ball (127) and spring (123)
    • The 4th gear blocking ring (121)
    • The 4th gear (198)
Fig 8: View Of 4th Gear Bearing
Courtesy of GENERAL MOTORS CORP.
13. Remove the 4th gear bearing (130) from the input shaft.
Fig 9: View Of Snap Ring
Courtesy of GENERAL MOTORS CORP.
14. Remove the snap ring (176) and discard.
Fig 10: Removing Counter Gear Front Bearing
Courtesy of GENERAL MOTORS CORP.
15. Using a hydraulic press, remove the counter gear front bearing from the input shaft.