S10/T10 P/U 2WD V6-4.3L VIN W (1997)
Misalignment
Outer race misalignment due to foreign object. Clean related parts and replace bearing. Make sure races are properly sealed.
Cracked Inner Race
Race cracked due to improper fit, cocking, or poor bearing seats.
Replace bearing and correct bearing seats.
Fatigue Spalling
Flaking of surface metal resulting from fatigue. Replace bearing and clean-all related parts.