Countershaft Reverse Selector Hub and 4TH Gear Replacement
Removal1. Remove the reverse selector hub (A) and the 5th gear (B) from the countershaft with a press. Place a shaft protector (C) between the countershaft and press to prevent damaging the countershaft.
NOTE: Some reverse selector hubs are not press-fitted, and can be removed without using a puller.
2. Remove the following parts from the countershaft:
- Transmission number: 1000001 to 1023749
- Needle bearing
- Snap ring
- Distance collar
- Cotters, 31 mm
- Transmission number: From 1023750
- Needle bearing
- Snap ring
- Distance collar, 35 x 47 x 7.8 mm
- Cotters, 31 mm
- Distance collar, 35 x 47 x 45.6 mm
- Cotters,31 mm
3. Remove the 1st gear (A) and 4th gear (B) together from the countershaft with a press. Place a shaft protector (C) between the countershaft and press to prevent damaging the countershaft.
Installation
Special Tools Required
Driver, 40 mm I.D. 07746-0030100
1. Apply ATF to the parts.
2. Install the 1st gear on the countershaft by hand.
3. Align the shaft splines with those on 4th gear, then press the countershaft (A) into the 4th gear with a press. Place an attachment (B) between the press and countershaft to prevent damaging the countershaft.
4. Stop pressing the countershaft when the 4th gear contacts the 1st gear (C).
5. Install the following parts on the countershaft:
- Transmission number: 1000001 to 1023749
- Cotters, 31 mm
- Distance collar
- Snap ring
- Needle bearing
- 5th gear (A)
- Transmission number: From 1023750
- Cotters, 31 mm
- Distance collar, 35 x 47 x 45.6 mm
- Cotters, 31 mm
- Distance collar, 35 x 47 x 7.8 mm
- Snap ring
- Needle bearing
- 5th gear (A)
6. Slide the reverse selector hub (B) over the countershaft (C), and then press it into place with the special tool and a press.
NOTE: Some reverse selector hubs are not press-fitted and can be installed without using the special tool and a press.