Sierra Classic 2500 4WD V8-6.0L (2007)
12. Install the pinion yoke. Align the marks made during removal.
13. Seat the pinion yoke onto the pinion shaft by tapping it with a soft-faced hammer until a few pinion shaft threads show through the yoke.
14. Install the washer and a new pinion nut.
15. Install the J 8614-01 onto the pinion yoke as shown.
16. Notice:
Refer to Fastener Notice.
Important:
If the rotating torque is exceeded, the pinion will have to be removed and a new collapsible spacer installed.
Tighten the pinion nut while holding the J 8614-01.
Tighten the pinion nut until the pinion end play is just taken up. Rotate the pinion while tightening the nut to seat the bearings.
17. Measure the rotating torque of the pinion using an inch-pound torque wrench.
The rotating torque of the pinion should be between 1.0 - 2.3 Nm (10 - 20 inch lbs.) for used bearings, or 1.7 - 3.4 Nm (15 - 30 inch lbs.) for new
bearings.
18. If the rotating torque measurement is below 1.0 Nm (10 inch lbs.) for used bearings, or 1.7 Nm (15 inch lbs.) for new bearings, continue to
tighten the pinion nut.
Tighten the pinion nut, in small increments, as needed, until the torque required in order to rotate the pinion is between 1.0 - 2.3 Nm (10 - 20 inch
lbs.) for used bearings, or 1.7 - 3.4 Nm (15 - 30 inch lbs.) for new bearings.
