Acura 3.5 RL Manual page 652

Use a dial-type torque wrench on the drive pinion to
measure the drive pinion bearing preload (Tp).
Standard: 1.42 - 1.91 N-m
(14.5 - 19.5 kgf-cm, 12.6 - 16.9 Ibf-in)
7. Reinstall the differential carrier and the differential
case cover, then measure the total bearing preload.
The total bearing preload should exceed the drive
pinion bearing preload (Tp) by:
Standard:
0.94 - 1.07 N-m (9.6 - 10.9 kgf-cm, 8.33 - 9.46 Ibf-in)
Example:
Total bearing preload (from step 7)
- Tp (from step 6)
= 0.94 - 1.07 N-m (9.6 - 10.9 kgf-cm, 8.33 - 9.46 Ibf-in)
Gear tooth contact
8. Remove the differential case cover and differential
carrier. Clean and paint the ring gear teeth lightly and
evenly with Prussian Blue (on both sides of each
tooth).
9. Reinstall the differential carrier and the differential
case cover, then torque the bolts in a crisscross pat-
tern in several steps.
10. Install the special tool as shown, then rotate the
drive pinion in both directions so that the ring gear
rotate one full turn in both directions. During this
operation resistance should be applied to the ring
gear.
11. Remove the differential case cover and the differen-
tial carrier, then check the tooth contact pattern.
CORRECT TOOTH CONTACT
TOE CONTACT
FLANK CONTACT
LOCKNUT SOCKET,
36 x 41 mm
07HAA-SF10100
DRIVE
PINION
HEEL CONTACT
FACE CONTACT
15-11