Model C200

1. Make sure all parts are clean and that the bearings are well lubricated.
2. Assemble the pinion gear bearings into the pinion preload shim selector Tool, J34309.
- Front pinion bearing - Make sure the J34309-3 front pinion bearing seat is secured tightly against the J34309-2 gauge anvil. Then turn the front pinion bearing pilot, J34309-5, to secure the bearing in its proper position.





- Rear pinion bearing - The rear pinion bearing pilot, J34309-8, is used to center the rear pinion bearing only. The rear pinion bearing locking seat, J34309-4, is used to lock the bearing to the assembly.





3. Install the pinion rear bearing inner cone into the final drive housing. Then place the pinion preload shim selector Tool, J34309-1, gauge screw assembly.





4. Assemble the front pinion bearing inner cone and the J34309-2 gauge anvil. Assemble them together with the J34309-1 gauge screw in the final drive housing. Make sure that the pinion height gauge plate, J34309-16, will turn a full 360°.





Tighten the two sections together by hand.
5. Turn the assembly several times to seat the bearings.





6. Measure the turning torque at the end of the J34309-2 gauge anvil using Tool number ST3127SOOO (J25765-A).
Turning torque specification: 1.0 - 1.3 Nm (8.7 - 11.3 inch lbs.)





7. Place the J34309-11 pinion height adapter onto the gauge plate and tighten it by hand.

CAUTION: Make sure all machined surfaces are clean.





Pinion Height Adjusting Washer Selection
8. Now, position the side bearing discs, J25269-4, and arbor firmly into the side bearing bores. Install the side bearing caps and tighten the cap bolts to proper torque.





9. Select the correct standard pinion height adjusting washer thickness. Select by using a standard gauge of 3 mm (0.12 inch) and J34309-101 feeler gauge. Measure the distance between the J34309-11 pinion height adapter including the standard gauge and the arbor.





10. Write down your exact measurement (the value of feeler gauge).








11. Correct the pinion height washer size by referring to the "pinion head number".
- There are two numbers painted on the pinion gear. The first one refers to the pinion and ring gear as a matched set. This number should be the same as the number on the ring gear. The second number is the "pinion head height number". It refers to the ideal pinion height from standard for quietest operation. Use the illustrated chart to determine the correct pinion height washer.





12. Select the correct pinion height washer. Refer to the illustration for the drive pinion height adjusting washers.





13. Remove the J34309 pinion preload shim selector Tool from the final drive housing. Then disassemble to retrieve the pinion bearings.