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September 1, 2012 Service bulletin

Gmc/chevrolet: due to a possible cracked or broken, the hub retaining nut, the rear axle may leak fluid

Chevrolet technical service bulletin PIP-4995 for 2011-2012 Chevrolet Silverado 2500, 2011-2012 GMC Sierra 2500 and 2011-2012 Chevrolet Silverado 3500 and others.

Bulletin number
PIP-4995
Component
Suspension: rear: axle: non-powered axle assembly
Summary
Gmc/chevrolet: due to a possible cracked or broken, the hub retaining nut, the rear axle may leak fluid. And 3500. Updated 11/28/12.

Owners of these vehicles have filed 5 complaints in the suspension category.

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