Mainshaft Disassembly and Assembly
Mainshaft Disassembly and AssemblyTools Required: J-22912-01 Universal Bearing Puller
Disassembly
1. Remove the mainshaft bearing using the universal bearing puller J-22912-01.
2. Remove the snap ring.
3. Remove the first gear, the flat-type first-gear needle bearing, and the mainshaft wear plate.
4. Remove the synchronizer hub sleeve that contains the synchronizer spring.
5. Remove the outer blocking ring.
6. Remove the keys from the first-second synchronizer gear.
7. Remove the barrel-type first-gear needle bearing.
8. Remove the snap ring and the washer.
9. Remove the first-second synchronizer gear from the mainshaft.
10. Remove the first-second gear blocking ring.
11. Remove the second gear using the universal bearing puller J-22912-01.
12. Remove the second-gear needle bearing.
13. Remove the ring and the thrust washer.
14. Remove the third gear and the synchronizer blocking ring.
15. Separate the synchronizer blocking ring from the third gear.
16. Remove the third-gear needle bearing from the mainshaft.
17. Remove the synchronizer sleeve containing the keys and the spring.
18. Remove the snap ring and the washer from the mainshaft.
19. Remove the third-fourth synchronizer gear containing the synchronizer spring.
20. Remove the fourth-gear assembly.
21. Separate the synchronizer blocking ring from the fourth gear.
22. Remove the fourth-gear needle bearing, the ring, and the thrust washer.
23. Remove the mainshaft bearing.
Assembly
1. Install the mainshaft bearing.
2. Install the ring, the thrust washer, and the fourth-gear needle bearing.
3. Attach the synchronizer blocking ring to the fourth gear.
4. Install the fourth-gear assembly.
5. Install the third-fourth gear synchronizer containing the synchronizer spring.
6. Install the snap ring and the washer around the mainshaft.
7. Install the synchronizer sleeve containing the keys and the spring.
8. Install the third-gear needle bearing.
9. Attach the synchronizer blocking ring to the third gear.
10. Install the third-gear assembly.
11. Install the thrust washer and the ring.
12. Install the second-gear needle bearing.
13. Install the second gear.
14. Install the first-second gear blocking ring.
15. Install the first-second synchronizer gear.
16. Install the washer and the snap ring.
17. Install the first-gear needle bearing.
18. Install the keys onto the first-second synchronizer gear.
19. Install the synchronizer hub sleeve containing the synchronizer spring.
20. Install the outer blocking ring.
21. Install the mainshaft wear plate, the flat-type first gear needle bearing, and the first gear.
22. Install the snap ring.
23. Press on the mainshaft bearing.