M/T Mainshaft Reassembly

Exploded View


Special Tools Required
Driver, 40 mm I.D. (  07746-0030100)

Attachment, 30 mm I.D. (  07746-0030300)

NOTE: Refer to the Exploded View as needed during this procedure.

1.Clean all the parts in solvent, dry them, and apply lubricant to all contact surfaces except the 3rd/4th and 5th synchro hubs.

2.Install the needle bearing and 3rd gear on the mainshaft.

3.Install the 3rd gear synchro ring and synchro spring on the shaft.


4.Install the 3rd/4th synchro hub (A) by aligning the synchro cone fingers (B) with the grooves in the 3rd/ 4th synchro hub (C).

5.Install the 3rd/4th synchro hub using the special tool.

6.Install the 3rd/4th synchro sleeve (A) by aligning the stops (B) with the 3rd/4th synchro sleeve and hub. After installing, check the operation of the 3rd/4th synchro hub set.


7.Install the 4th gear synchro spring and ring, 4th gear and needle bearing, the distance collar, and 5th gear and its needle bearing on the shaft.

8.Install the 5th gear synchro ring and synchro spring on the shaft.

9.Install the 5th synchro hub (A) using the special tool.


10.Install the 5th synchro sleeve.

11.Install the distance collar and the tapered cone ring.

12.Install the new ball bearing (A) using the special tools.