Cracked Inner Race

The race is cracked due to improper fit, cocking, or poor bearing seats. See Fig 1 .

1. Clean all the parts and the housings.
2. Ensure the races are properly seated.
3. Replace the bearing. Refer to WHEEL HUB, BEARINGS & SEAL.

Fig 1: Identifying Cracked Inner Race

Courtesy of GENERAL MOTORS CORP.