Disassemble

1. Fourth gear clutch gear.
2. Main drive gear thrust bearing.
3. Fourth gear synchronizer ring.





4. Third gear and synchronizer assembly.
- Attach a two jaw puller to the clutch gear of the third gear. Remove the synchronizer assembly, synchronizer ring, and third speed gear together.





5. Third gear bearing.
6. Third gear bearing spacer.





7. Second gear thrust washer snap ring.
8. Second gear thrust washer.
9. Second gear thrust washer retaining pin.





10. Second gear.





11. Second gear bearing.





12. Second gear synchronizer ring snap ring.





13. Second Dear synchronizer rings.





14. 1-2 synchronizer sleeve and hub snap ring.





15. 1-2 synchronizer assembly.
- Do not let the synchronizer assembly come apart during disassembly of transmission.





16. First gear synchronizer ring snap ring.





17. First gear synchronizer rings.
18. First gear clutch gear snap ring.
19. First gear clutch gear.
- Turn the mainshaft over.





20. Rear mainshaft bearing.





21. Reverse gear thrust washer.





22. Reverse gear and synchronizer assembly from the mainshaft.





23. Reverse gear bearing and spacer.
24. Reverse gear clutch gear snap ring.
25. Reverse gear synchronizer ring and clutch gear.





26. First gear and bearing.

Inspect
1. Gears for cracks, chipped gear teeth, and other damage that could cause gear noise.
2. Thrust washers for damage and wear.
3. Synchronizer sleeves for a sliding fit on the synchronizer hubs.
- The hubs have to be a snug fit on the mainshaft splines.
4. Synchronizer springs and keys for looseness and damage.
5. All gear teeth for excess wear.
6. Bearings and bearing surfaces for nicks, burrs and wear.
7. Lubricate all roller bearings with Castro Syntorq LT transmission fluid and check for rough rotation.