A/T Countershaft Disassembly

A/T Countershaft Disassembly

Exploded View





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

1. Cut the lock tab (A) off the countershaft locknut (B) using a chisel (C).

NOTE: Keep all of the chiseled particles out of the countershaft.






2. Hold the countershaft securely using a wrench and a vise, loosen the locknut, and remove it. The locknut has left-hand threads.






3. Place the countershaft 5th gear (A) on press bases (B), and place a spacer (C) between the countershaft (D) and a press to prevent damaging the countershaft.





4. Support the bottom of the countershaft with one hand, then press the countershaft out of the press-fitted bearing (E) and the press-fitted reverse selector hub. The countershaft will drop down after pressing it out of the press-fitted reverse selector hub. Some reverse selector hubs are not press-fitted, and the countershaft will drop down after pressing it out of the press-fitted bearing.

5. Remove the remaining parts from the countershaft.

6. Inspect the bearing for galling and rough movement.

7. Check the shaft bearing surfaces for scoring and excessive wear, and check the shaft splines for excessive wear and damage.

8. Check the idler gear axial clearance and the 4th gear axial clearance A/T Countershaft Idler Gear and 4th Gear Axial Clearance Inspection.