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Home >> Geo >> 1994 >> Tracker Base, 1.6 6, RWD >> Repair and Diagnosis >> General Information >> Basic Trouble Shooting >> Basic Trouble Shooting - General Information >> Powertrain >> Drive Axle - Noise Diagnosis >> Bearing Rumble

Bearing Rumble

Bearing rumble sounds like marbles being tumbled. It is usually caused by a malfunctioning wheel bearing. The lower pitch is because the wheel bearing turns at only about 1/3 of drive shaft speed.