[camaro5]

Originally Posted by MXSG

Earlier today I noticed a squeaking metal-on-metal sound coming from the rear of the car. It happens at all speeds and seems to be linked to wheel rotation. It occurs regardless of the brakes being applied or not. Volume is not consistent but it's audible even with the windows up.

Car is a 1SS with 2,200 miles with aftermarket wheels and an exhaust, no other mods. Any ideas before I make an appointment to take it in?

TSB Number:
16-NA-399
NHTSA Number:
10116609
TSB Date:
February 28, 2017
Date Added to File:
August 30, 2017
Failing Component:
Wheels:Lugs/Nuts/Bolts
Summary:
This bulletin advises the service technician of new longer bolts and lock washers required to be installed during repairs that require the half shaft bolts to be removed or replaced.

Originally Posted by Marty McFlew

Who has had the this Axle failure?


#16-NA-399: Information on Replacing Half Shaft Fasteners with Revised Parts - (Dec 19, 2016)

Subject:Information on Replacing Half Shaft Fasteners with Revised Parts
CadillacATS-V20162017LF3, LF4, LT1, LT4CTS-V20152017ChevroletCamaro20162017
 

Involved Region or CountryNorth America and N.A. Export RegionsConditionThe technician may need to perform a repair that requires the half shaft bolts to be removed.
Information

This bulletin advises the Service Technician of new longer bolts and lock washers required to be installed during any repair that requires the half shaft bolts to be removed or replaced.

• Three retainer assemblies required per half-shaft.
  • Each retainer (3) requires 2 bolts (1) and 2 washers (2) to make a retainer assembly.
  • Where applicable, each axle assembly uses 3 retainer assemblies per side.
  • Each repair kit contains 6 bolts and 6 washers. 1 kit for each half shaft.
  • Replacement of all axle bolts are required during repair.

Correction

If half-shaft has been separated from the differential:

• Remove and discard only the half shaft bolts.
• If required, clean and reuse retainers.
• Replace the shorter bolts (1) with a new longer bolt (2) and washer.
• Install the lock washers onto the bolts.
• Install bolt and washer assembly into retainer.
  • Torque bolts to proper torque specifications. Refer to Fastener Specifications in SI.

Service stock half shafts may include POA bolt/retainer assemblies. These assemblies may require rework with longer fasteners.

• The new half shaft bolts must be removed, measured and discarded if the length is incorrect.

Parts Information[COLOR=brown !important]Note: To obtain the bolts and washers, fax the form included in this bulletin to the GM Warranty Parts Center (WPC). Request WPC #816.

Use the Vehicle Identification Number (VIN), SI, and the GM Electronic Parts Catalog to determine the proper part numbers for the half shaft, if replacement is required:

Bolt/WasherWPC #8161 kit (6 bolts/6 washers)