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December 1, 2013 Service bulletin

CSP-Pinion Nut Improperly Fastened

Chevrolet technical service bulletin 13430 for 2014 Chevrolet Silverado 1500 and 2014 GMC Sierra 1500.

Bulletin number
13430
Component
Power train
Summary
CSP-Pinion Nut Improperly Fastened - Equipped with 3.73 Rear Axle Ratio (GT4) and Locking Rear Differential (G80)

Owners of these vehicles have filed 223 complaints in the transmission category.

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