Grand Cherokee 4WD V8-4.7L (2003)
12. Using Spanner Wrench 6958 and a torque wrench set at 380 Nm (280 ft. lbs.), (Fig. 86) slowly tighten the nut in 6.8 Nm (5 ft. lbs.) increments
until the rotating torque is achieved. Measure the rotating torque frequently to avoid over crushing the collapsible spacer (Fig. 87).
13. Check bearing rotating torque with a inch pound torque wrench (Fig. 87). The pinion gear rotating torque should be:
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Original Bearings: 1 - 2.25 Nm (10 - 20 in. lbs.).
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New Bearings: 2.8 - 4 Nm (25 - 35 in. lbs.).
14. Invert the differential case and start two ring gear bolts. This will provide case-to-ring gear bolt hole alignment.
15. Invert the differential case in the vise.
16. Install new ring gear bolts and alternately tighten to 129 - 142 Nm (95 - 105 ft. lbs.) (Fig. 88).
CAUTION: Never reuse the ring gear bolts. The bolts can fracture causing extensive damage.
NOTE: If equipped with Vari-Lok differential install oil feed plenum and side bearing.
