Tools Required

1. Remove the following parts in order:

1.1.	The mainshaft large tapered bearing

1.2.	The 1st speed gear

1.3.	The 1st speed gear caged needle bearing




2. Remove the following parts in order:

2.1.	The retainer ring

2.2.	The thrust washer

2.3.	The 1st speed gear inner cone

2.4.	The 1st speed gear friction cone

2.5.	The 1st speed gear blocking ring





Important: The synchronizer hubs and sliding sleeves are a selected assembly. Keep these parts together as originally assembled.

3. Scribe a mark on the synchronizer hub and on the sleeve. This will help you to reinstall the parts in the same position.



4. Remove the 2nd speed gear, using the J 36513 and a hydraulic press. The 1st/2nd speed synchronizer assembly, the 2nd speed gear blocking ring, the 2nd speed gear friction cone, the 2nd speed gear inner cone, and the thrust washer will press off with the 2nd speed gear.



5. Remove the 2nd speed gear caged needle bearing.



6. Remove the mainshaft small tapered bearing, using the J 39442 , the J 39443 , and a hydraulic press.
7. Discard the small tapered bearing.



8. Remove the 3rd/4th speed synchronizer retainer ring.

Important: The synchronizer hubs and sliding sleeves are a selected assembly. Keep these parts together as originally assembled.




9. Scribe a mark on the synchronizer hub and on the sleeve. This will help you to reinstall the parts in the same position.



10. Remove the 3rd speed gear, using the J 39473 , V-blocks, and a hydraulic press. The 3rd/4th speed synchronizer assembly, and the 3rd speed gear blocking ring will press off with the 3rd speed gear.



11. Remove the 3rd speed gear spacer and the 3rd speed gear caged needle bearing.

Tools Required

Important: Do not replace the tapered bearing or the bearing race unless inspection shows that the bearing or the race are damaged.




1. Remove the tapered bearing from the input shaft, using the J 22912-O1 and a hydraulic press.



2. Remove the bearing race from the input shaft, using the J 23907 and the J 39594 .