Grand Cherokee 4WD Laredo V8-4.7L (2002)
500 Nm (368 ft. lbs.).
CAUTION: Never loosen pinion nut to decrease pinion rotating torque and never exceed specified preload torque. If preload torque is exceeded
a new collapsible spacer must be installed.
6. Using Spanner Wrench 6958, a length of 1 inch pipe and a torque wrench set at 500 Nm (368 ft. lbs.) crush collapsible spacer until bearing end
play is taken up (Fig. 37).
7. Slowly tighten the nut in 6.8 Nm (5 ft. lbs.) increments until the required rotating torque is achieved. Measure the rotating torque frequently to
avoid over crushing the collapsible spacer.
8. Rotate pinion gear a minimum of ten times and verify pinion rotates smoothly. Check rotating torque with an inch pound torque wrench. The
rotating torque should be the amount recorded during removal plus:
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Original Bearings: 0.56 Nm (5 in. lbs.).
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New Bearings: 1.7 to 3.4 Nm (15 to 30 in. lbs.).
9. Install propeller shaft with reference marks aligned.
10. Install brake rotors and calipers.
11. Add gear lubricant if necessary.
12. Install wheel and tire assemblies.
13. Lower vehicle.
