Countershaft: Service and Repair

OVERHAUL OF COUNTERSHAFT ASSEMBLY

NOTE:
- Lubricate all parts with ATF during reassembly.
- Inspect the thrust needle bearings and the needle bearings for galling and rough movement.
- Before installing the O-rings, wrap the shaft splines with tape to prevent damage to the O-rings.
- Install the conical spring washer, reverse selector hub, reverse selector and one-way clutch in the direction shown.

REPLACEMENT OF COUNTERSHAFT 1ST/3RD GEAR
TOOL REQUIRED
- 07746-0010100 Attachment
- Or Equivalent





REMOVAL
1. Using a hydraulic press, press the countershaft out from the 1st/3rd gear assembly while supporting the 1st-hold clutch.

NOTE:
- Place an attachment between the press and countershaft to prevent damage to the shaft.
- Hold onto the countershaft to keep it from falling when pressed clear.

INSTALLATION

NOTE: Lubricate all parts with ATF during assembly.





1. Install the one-way clutch securely in the 1st gear in the direction shown, and install the thrust needle bearing in the 1st gear.
2. Assemble the 3rd gear and 1st gear by turning the 3rd gear in the direction shown.





3. Hold the 1st gear, and make sure the 3rd gear turns freely in the direction shown. Also make sure the 3rd gear does not turn in the opposite direction.





4. Install the needle bearing, thrust washer and 1st gear collar in the 1sV3rd gear assembly, then install them in the 1st-hold clutch.
5. Wrap the shaft splines with tape to prevent damage to the O-rings, and install two new O-rings in the countershaft.
6. Install the 1st/3rd gear and 1st-hold clutch assembly on the countershaft.





7. Align the shaft splines with those of 1st-hold clutch, 1st gear collar and 3rd gear, then press the countershaft into 3rd gear using a press.

NOTE:
- Place an attachment between the press and countershaft to prevent damage to the shaft.
- Stop pressing the countershaft when the 1sthold clutch contacts the final drive gear.