TSB Document:

• Sorry, the NHTSA has not posted this TSB document yet.

You can still get the detailed info from Chevrolet for this TSB. Call your local Chevrolet dealer's service department & ask for a copy of TSB# 08-04-20-001A.

Affected Component: SUSPENSION:REAR:AXLE:NON-POWERED AXLE ASSEMBLY

Summary

GM: REAR AXLE GEAR WHINE NOISE FROM HD PICKUP TRUCKS EQUIPPED WITH 11.50: RING GEAR AND MW7 AUTOMATIC TRANSMISSION (DIAGNOSE RING AND PINION). *PE

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