Quote:
Originally Posted by LibertyHill
There has to be something that can be done to try to prevent this from happening. A good soaking with Loctite 290 maybe?
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A mechanic on another board posted a TSB that called for longer bolts
TSB # 16-NA-399
Subject: Information on Replacing Half Shaft Fasteners with Revised Parts
Brand:
Model:
Model Year:
VIN:
Engine:
Transmission:
from
to
from
to
Cadillac
ATS-V
2016
2017
LF3, LF4, LT1, LT4
CTS-V
2015
2017
Chevrolet
Camaro
2016
2017
Involved Region or Country
North America and N.A. Export Regions
Condition
The 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
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:
Description
Part Number
Qty
Bolt/Washer
WPC #816
1 kit (6 bolts/6 washers)
IMPORTANT NOTE WHEN PRINTING THIS FORM: If the form prints out on two pages, make certain you fax BOTH pages so that the WPC receives all the needed information. Missing information will delay or prevent the part from being shipped.
Parts Request Form – Warranty Parts Center
Use this form ONLY for U.S. and Canadian Dealers. Export markets and Mexico Dealers must contact their regional Technical Assistance Center for assistance.
To: Warranty Parts Center
e-mail:
warrantypartscenterUSA@gm.com
or WPC Fax: 248-371-0192
Attn: Temporary Service Parts
Part Being Requested: WPC #816 Bolt and Washer kit