Front/Rear Differential May Develop Noise Due to Worn Bearings on GMC 1500 Pickup

Problem Description and Possible Solution

The front or rear differential may develop an abnormal noise due to worn bearings or another internal fault. Our technicians tell us that a complete overhaul of the affected differential is commonly necessary to correct this condition.

Problem Data
RepairPal Verified
Average mileage: 182,000 (179,000–185,000)
Drive Train affected: 4WD
10 model years affected: 1990, 1991, 1992, 1993, more1994, 1995, 1996, 1997, 1998, 1999
12 people reported this problem
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sounds like bearings in rear