Pinion Gear

REMOVAL/INSTALLATION

NOTE: The pinion can only be removed after removing the differential.





1. Transmission housing
2. Pinion
- Matched to ring gear
- If damaged, replace pinion and ring gear as a set
- Number of teeth, refer to CODE LETTERS, ENGINE/TRANSAXLE APPLICATIONS, RATIOS AND EQUIPMENT. Application and ID
- Installing, refer to Fig. 1, below.
- Adjusting, refer to Ring, Pinion and Input Gear. Adjustments
3. Tapered roller bearing inner race
- Removing, refer to Fig. 2, below.
- Pressing on, refer to Fig. 3, below.
4. Tapered roller bearing outer race
- Drive out using drift
- Installing, refer to Fig. 4, below.
5. Shim "S3"
- Determining thickness, refer to page Ring, Pinion and Input Gear. Adjustments
6. Pinion bushing
- Remove with tapered roller bearing outer race, refer to Fig. 2, below
- Pressing on, refer to Fig. 3, below.
7. Pinion oil seal
- Always replace
- Remove with screwdriver
- Driving in, refer to Fig. 5, below.
8. Parking lock gear
- Rounded side faces toward input gear
9. Input gear/pinion
- Number of teeth, refer to CODE LETTERS, ENGINE/TRANSAXLE APPLICATIONS, RATIOS AND EQUIPMENT. Application and ID
- Raised shoulder faces toward parking lock gear
- Removing, refer to Fig. 6, below.
10. Shim "S4"
- Determining thickness, refer to Ring, Pinion and Input Gear. Adjustments
11. Spacer
- Wider contact surface faces toward input gear
12. O-ring
- Always replace
13. Pinion cover
14. Bolt
- Tighten to: 25 Nm (18 ft lb)
15. Tapered roller bearing outer race
- Drive out using drift
- Driving in, refer to Fig. 7, below.
16. Tapered roller bearing inner race
17. Nut
- Secure after measuring pinion turning torque and adjusting pinion, refer to Fig. 8, below.
- Adjusting pinion, refer to Ring, Pinion and Input Gear. Adjustments
- Engage parking lock to remove or install
18. End cover
- Removing, refer to Fig. 9, below.
- Installing, refer to Fig. 10, below.





Fig. 1 Installing pinion
- Use assembly sleeve (A in illustration, special tool 3187) to install the pinion and prevent damage to the sealing lips.





Fig. 2 Removing tapered roller bearing inner race with bushing/pinion





Fig. 3 Pressing on tapered roller bearing inner race with bushing/pinion





Fig. 4 Installing tapered roller bearing outer race





Fig. 5 Driving in sealing ring for pinion
- Drive sealing ring into stop.
High shoulder (inside) faces toward parking lock gear.





Fig. 6 Removing input gear/pinion
- A in illustration = Kukko 20-10 and pulling hook Matra V 172





Fig. 7 Pressing in tapered roller bearing outer race





Fig. 8 Securing hex nut
- Secure collar of hex nut using drift on flattened side of pinion (arrow).





Fig. 9 Driving off end cap





Fig. 10 Installing end cap
- Drive on to stop.