Tools Required

J 22912-01  Universal Bearing Puller. See Special Tools .

Fig 1: Mainshaft Bearing & J 22912-01
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1. Remove the mainshaft bearing using the J 22912-01  (1). See Special Tools .
Fig 2: Mainshaft Snap Ring
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2. Remove the snap ring.
Fig 3: 1st Gear, 1st Gear Needle Bearing & Mainshaft Wear Plate
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3. Remove the 1st gear, the flat-type 1st gear needle bearing, and the mainshaft wear plate.
Fig 4: Synchronizer Hub Sleeve & Synchronizer Spring
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4. Remove the synchronizer hub sleeve that contains the synchronizer spring.
5. Remove the outer blocking ring.
Fig 5: 1st-2nd Synchronizer Gear
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6. Remove the keys from the 1st-2nd synchronizer gear.
Fig 6: Barrel-Type 1st Gear Needle Bearing
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7. Remove the barrel-type 1st gear needle bearing.
Fig 7: Snap Ring & Washer
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8. Remove the snap ring and the washer.
Fig 8: 1st-2nd Synchronizer Gear & Mainshaft
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9. Remove the 1st-2nd synchronizer gear from the mainshaft.
Fig 9: 1st-2nd Gear Blocking Ring
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10. Remove the 1st-2nd gear blocking ring.
Fig 10: 2nd Gear & J 22912-01
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11. Remove the 2nd gear using the J 22912-01  (1). See Special Tools .
Fig 11: 2nd Gear Needle Bearing
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12. Remove the 2nd gear needle bearing.
Fig 12: Ring & Thrust Washer
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13. Remove the ring and the thrust washer
Fig 13: 3rd Gear & Synchronizer Blocking Ring
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14. Remove the 3rd gear and the synchronizer blocking ring.
Fig 14: Synchronizer Blocking Ring
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15. Separate the synchronizer blocking ring from the 3rd gear.
Fig 15: 3rd Gear Needle Bearing & Mainshaft
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16. Remove the 3rd gear needle bearing from the mainshaft.
Fig 16: Synchronizer Sleeve, Keys & Spring
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17. Remove the synchronizer sleeve containing the keys and the spring
Fig 17: Snap Ring, Washer & Mainshaft
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18. Remove the snap ring and the washer from the mainshaft.
Fig 18: 3rd-4th Synchronizer Gear & Synchronizer Spring
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19. Remove the 3rd-4th synchronizer gear containing the synchronizer spring.
Fig 19: 4th Gear Assembly
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20. Remove the 4th gear assembly.
Fig 20: Synchronizer Blocking Ring & 4th Gear
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21. Separate the synchronizer blocking ring from the 4th gear.
Fig 21: 4th Gear Needle Bearing, Ring & Thrust Washer
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22. Remove the 4th gear needle bearing, the ring, and the thrust washer.
Fig 22: Mainshaft Bearing
Courtesy of GENERAL MOTORS CORP.
23. Remove the mainshaft bearing.