Differential assembly (page 4 of 5)

6. Ensure original head bearing shim is clean and 19. Ensure pinion height setting block, setting free from burrs and fit under bearing race.
7. Ensure pinion bearing cup recesses are clean and free of burrs and using LRT-51-018-4 fit 20. Locate setting block pinion head and tail bearing races.
8. Fit pinion head bearing to pinion.
9. Lubricate bearings with thin oil.
10. Ensure original tail bearing shim is clean and free from burrs and fit under bearing race.
11. Fit pinion and pinion tail bearing.
12. Fit pinion flange, washer and bolt.
13. Use LRT-51-003 to restrain pinion flange.
14. Tighten pinion flange bolt to 100 Nm (74 lbf.ft).
15. Check pinion for end float. Should read zero.

21. Pinion height setting procedure:
16. Rotate pinion several times to settle bearings, check pinion Torque to Turn. Torque to Turn should be recorded during pinion rotation. Pinion Torque to Turn should be 4 to 6 Nm (3 to 4.5 lbf.ft).
17. Adjust size of tail bearing shim to obtain correct pinion Torque to Turn (0.025 mm = 1 Nm (0.001' = 0.7 lbf.ft) approximately).
18. Position LRT-51-018-7 on surface plate, establish zero and reference DTI.

gauge and mating faces are clean and free from burrs. LRT-51-018/11 over pinion head, ensure it is fully seated in position.

l 'A' = Nominal pinion height setting, 74.390. l 'B' = Setting block height. l 'C' = Head height setting. l 'C' = 'A' - 'B'. Subtract nominal pinion height 'A' from setting block height 'B' (on side of setting block). l Example: 74.390 - 73.130 = 1.26 mm (2.929' - 2.88' = 0.049'). Therefore pinion head height reading is 1.260 mm ± 0.025 mm (0.049' ± 0.001').

CAUTION: Setting block height must be checked using figures on side of block.