Manual:HUMMER Hummer H3 Base 2010Page:6751 / 37523
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Front Drive Axle Bearing Wear (Tapered): Galling — 2010 Hummer H3 Base, Automatic Service Manual
Front Drive Axle Bearing Wear (Tapered): Galling
Fig 1: Galling
Courtesy of GENERAL MOTORS CORP.
Metal smears on the roller ends due to overheating, lubricant failure, or lubricant overload. Replace the bearing. Check the seals. Check for proper lubrication.