Axle shaft bolts came out today! - Page 2

Burly · 08-10-2017, 11:06 AM

What is the proper torque specifications for these bolts?

PushLifeSSlim · 08-10-2017, 12:42 PM

I've been experiencing a loud clicking noise near the rear passenger wheel. Just received a call this morning from the tech stating that the issue is the axle bolts. I am at just below 13K miles. They have to order the parts so I'll be picking up a rental today. I'll post when I pick it up and get more details.

LibertyHill · 08-10-2017, 01:05 PM

^^Can you please try to provide a part number for the bolt set? Maybe ask your service advisor if its not on the receipt?

PushLifeSSlim · 08-14-2017, 01:43 PM

Quote:

Originally Posted by LibertyHill

^^Can you please try to provide a part number for the bolt set? Maybe ask your service advisor if its not on the receipt?

Will do. Still waiting to hear back from the service department. Today will make 3 1/2 days that they've had my car, given Saturday was a half-day for their service department. Hoping to hear something soon.

Sub · 08-14-2017, 01:48 PM

Please ask the torque value too on the half shafts!

TedJS · 08-14-2017, 04:59 PM

37 lb. ft. on the initial install + 45 degrees on the final pass. Bolts must be replaced anytime they are removed.

black96lt1 · 08-14-2017, 09:27 PM

I finally have my car back after almost a month and it now has a vibration/shudder at part throttle in 8th on the highway. If you give it enough gas to downshift no vibration, and the steering wheel is slightly off center. They did the transmission line recall as well, which is what took so long waiting on the parts. So I guess it will be going back in this week.

vtirocz · 08-16-2017, 07:53 AM

Quote:

Originally Posted by SS 1LE

Regardless of any issues, axle bolts on a car like this are something that I would recommend checking at each oil change...if the bolts are backing out, you can most likely catch it then. I checked mine at 1000 miles, and they are all good.

How exactly did you check yours to confirm they were OK? I'm assuming you used a torque wrench set to some value, attempted to tighten, and saw no movement of the bolt, but just wanted to be sure.

I'm wondering if this is cheap insurance to just buy the new parts and perform this fix to avoid catastrophic failure and unexpected down time.

WhiteNight · 08-16-2017, 09:38 AM

So will the dealer install longer bolts under warranty only if the current set is failing? Can it be done as preventative maintenance?

jaysonstuart · 08-16-2017, 09:52 AM

There is also the possibility that Billy Bob factory worker was having a bad day and just didn't do his job.

vtirocz · 08-16-2017, 10:40 AM

Quote:

Originally Posted by jaysonstuart

There is also the possibility that Billy Bob factory worker was having a bad day and just didn't do his job.

It looks like they changed the design though. So they must have investigated this far enough to determine a weakness in the production design.

I am seriously considering just buying the improved hardware and performing the fix myself.

Does this issue apply to both the hub AND axle side, or just the axle side?

reeper · 08-16-2017, 10:52 AM

Glad I ran across this. My car was going to the dealer for the transmission line recall so I called and he's now going to do the TSB as well.

They should really make this a recall....

SS 1LE · 08-16-2017, 10:59 AM

Quote:

Originally Posted by vtirocz

How exactly did you check yours to confirm they were OK? I'm assuming you used a torque wrench set to some value, attempted to tighten, and saw no movement of the bolt, but just wanted to be sure.

Yes, that is correct...

Plus, most people who have noticed this issue can actually see the bolts backing out...so you could even do a quick visual inspection first. The bolts have to back out a decent amount before they could fall out.

vtirocz · 08-16-2017, 11:08 AM

Quote:

Originally Posted by reeper

Glad I ran across this. My car was going to the dealer for the transmission line recall so I called and he's now going to do the TSB as well.

They should really make this a recall....

Could you confirm with your dealer if both the hub AND axle side require the new bolts, or just the axle side?

I read the TSB and it's not 100% clear to me, although I think it's only referencing the axle side.

08-10-2017, 12:42 PM	#16
PushLifeSSlim Drives: 16' 2SS NPP A8 Garnet Red Join Date: Aug 2017 Location: North GA Posts: 4	I've been experiencing a loud clicking noise near the rear passenger wheel. Just received a call this morning from the tech stating that the issue is the axle bolts. I am at just below 13K miles. They have to order the parts so I'll be picking up a rental today. I'll post when I pick it up and get more details. __________________ Garnet Red 2SS NPP A8

08-10-2017, 01:05 PM	#17
LibertyHill Drives: 16 2SS 6MT NPP MRC / 15 K1300S Join Date: Mar 2016 Location: NW of Austin Posts: 1,034	^^Can you please try to provide a part number for the bolt set? Maybe ask your service advisor if its not on the receipt? __________________ Rohana RFX-5 10/11, M/T 275/305, Eibachs, Hellwigs, Hurst SS, DMS LT4 SC 596HP/589TQ, DMS Low-side, Kooks 2LTs, MBRP Race, Rotofab, MMS CC

08-14-2017, 01:48 PM	#19
Sub Drives: 2017 ZL1 Join Date: Oct 2016 Location: Ny Posts: 859	Please ask the torque value too on the half shafts! __________________ My Car Blog and mods. Previous Chevys: 2016 2ss, 2015 C7 z51, 2004 C5 Z06 Last edited by Sub; 08-16-2017 at 01:13 PM.

08-16-2017, 10:52 AM	#26
reeper Drives: 2010 HD D/A, 2015 Z06, 2016 2SS Join Date: Aug 2016 Location: Central WI Posts: 503	Glad I ran across this. My car was going to the dealer for the transmission line recall so I called and he's now going to do the TSB as well. They should really make this a recall.... __________________ 2016 Hyper Blue A8 2SS GM Bodykit: Black MRR 017 wheels: Black OEM Blackout tail-lamps OEM SEMA Grille 35% window tint Black glow-tie BMR Suspension (Pretty much everything) ACS rear-deck spoiler Rotofab CAI Lolly-pop red rotors by Madison Powder Coating

08-10-2017, 11:06 AM	#15
Burly Drives: 2016 Camaro 2SS Join Date: Apr 2016 Location: Spotsylvania, VA Posts: 724 View My Garage	What is the proper torque specifications for these bolts?

08-14-2017, 04:59 PM	#20
TedJS Drives: 2016 Camaro SS Join Date: Jul 2016 Location: Cleveland, OH Posts: 92	37 lb. ft. on the initial install + 45 degrees on the final pass. Bolts must be replaced anytime they are removed.

08-14-2017, 09:27 PM	#21
black96lt1 Drives: 1996 z28 Join Date: May 2016 Location: upstate SC Posts: 17	I finally have my car back after almost a month and it now has a vibration/shudder at part throttle in 8th on the highway. If you give it enough gas to downshift no vibration, and the steering wheel is slightly off center. They did the transmission line recall as well, which is what took so long waiting on the parts. So I guess it will be going back in this week.

08-16-2017, 09:38 AM	#23
WhiteNight Drives: MB 1SS Join Date: May 2017 Location: Easton, PA Posts: 321	So will the dealer install longer bolts under warranty only if the current set is failing? Can it be done as preventative maintenance?

08-16-2017, 09:52 AM	#24
jaysonstuart Drives: 2016 Camaro 2SS Join Date: Jun 2012 Location: Albany, OR Posts: 685 View My Garage	There is also the possibility that Billy Bob factory worker was having a bad day and just didn't do his job.

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