Assembly
1. Press tapered roller bearing onto input shaft using a suitable driver.
2. Install needle bearing, 3rd gear and 3rd gear synchronizer ring to input shaft.
3. Install 3rd/4th gear synchronizer assembly onto input shaft with small collar facing out. Install new snap ring.
4. Install 4th gear synchronizer ring, needle bearing and 4th gear to input shaft.
5. Press 5th gear onto input shaft using a suitable driver.
6. Press input shaft bearing onto input shaft using a suitable driver.