Grand Cherokee 2WD V8-4.7L VIN J (2004)
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: 1.7 - 3.9 Nm (15 - 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 136 Nm (100 ft. lbs.) (Fig. 88).
CAUTION: Never reuse the ring gear bolts. The bolts can fracture causing extensive damage.
17. Install differential in housing and verify differential bearing preload, gear mesh and contact pattern. Refer to Adjustments for procedure.
18. Install differential cover and fill with gear lubricant.
19. Install the propeller shaft with the reference marks aligned.
20. Remove supports and lower vehicle.