Wheel Bearings Diagnosis (Tapered): Indentations

WARNING: This page is about a different car, the 2002 GMC Safari and 2002 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Indentations Pattern

Courtesy of GENERAL MOTORS CORP.

The surface depressions on the race and the rollers are caused by hard particles of foreign matter.

Check the seals.
Clean all the parts and the housings.
Replace the bearings. Refer to WHEEL HUB, BEARING & SEAL REPLACEMENT (AWD) or WHEEL HUB, BEARING & SEAL REPLACEMENT (RWD) .