Driveshaft "Clunk" - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Hammer St. James · 06-07-2012, 11:05 AM

After releasing the clutch in 1st gear and reapplying soon after I can hear/feel the driveshaft make a clunk. This doesnt happen while traveling at road speed and going through the gear pattern.

3k miles on the car and I don't beat on it. Anyone else experience this?

piticu667 · 06-07-2012, 12:20 PM

Quote:

Originally Posted by Hammer St. James

After releasing the clutch in 1st gear and reapplying soon after I can hear/feel the driveshaft make a clunk. This doesnt happen while traveling at road speed and going through the gear pattern.

3k miles on the car and I don't beat on it. Anyone else experience this?

Known issue especially on the v6... the clutch and shaft assembly on the v6 is let say sh*t. Be glad you do not have the grind yet.. I would suggest you install IDEALG's modified clutch master cylinder otherwise get ready for the 1-2 grind..

Hammer St. James · 06-07-2012, 12:56 PM

Thanks for the response

I already get the grind at higher rev shifts.

JohnnyBfromPeoria · 06-07-2012, 04:21 PM

I know the clunk you are referring to; I have it as well.

I have had the grind since the day I picked mine up. High rpm shift from 1 to 2 = grind.

One day I'll get the master cylinder upgrade from the aftermarket, IdealG.

I'll let the dealer deal with the clunk. Seems to be some slop in the differential/half shafts.

John B.

Bad70supreme · 06-08-2012, 02:38 PM

I find it has to do with how and when you push and release the clutch. If your rolling slow push the clutch in and release it at a slower rate seems to keep it from clunking.

Bertelicious · 06-08-2012, 04:26 PM

I get something similar that sounds more like some vibration. Not much of a clunk but definitely something that does not sound right. Does not seem to affect drivability with the exception of being a little annoying.

Anyone else have any more info? Service Bulletin? Recall? Would a better Tranny Mount alleviate the issue?

My 5th · 06-16-2012, 12:32 AM

GM says the clunk is normal. First car I've ever had that had it though.

If the clunk is normal, that means they designed it in and they know what causes it, but they won't elaborate on what "normal" means.

Ask a Mustang owner if their car has a clunk. I bet not.

I think it's a combination of "slacks" in all the drivetrain parts, but mostly in the rear differential ring & pinion, posi unit, and spyder gears, I wonder if after-market differentials eliminate the clunk.

Jayrcr3 · 06-16-2012, 12:43 AM

Unfortunately it is normal. I had an 05 CTS-V and it was horrible for the clunk. TherE is a solution for it though, and it is a new polyurethane diff bushing. Just be glad that they didn't build the camaro rear diff out of glass like the previous gen CTS-V. One good hard 1-2 shift in the V would result in a permanent rear diff whine.
Sent from my HTC One X using Tapatalk 2

Cody6.2 · 06-16-2012, 09:53 AM

I'm pretty sure it isn't differential movement because C6's do the same thing and there is zero movement as the driveline is all connected. On the Camaro & C6 I think it's just the driveshaft unloading since the shaft is in a static position at all times.

06-07-2012, 11:05 AM	#1
Hammer St. James Drives: 2012 Camaro 1LS Join Date: Mar 2012 Location: NE Ohio Posts: 174	Driveshaft "Clunk" After releasing the clutch in 1st gear and reapplying soon after I can hear/feel the driveshaft make a clunk. This doesnt happen while traveling at road speed and going through the gear pattern. 3k miles on the car and I don't beat on it. Anyone else experience this? __________________ I'm a rebel. I will not allow anyone to dictate what I do, when I do it, or who I do it with. I feel sorry for those that choose to compromise their goals, dreams, needs, and desires to appease the control of another. I believe in freedom. I am an American. -HSJ

06-07-2012, 12:56 PM	#3
Hammer St. James Drives: 2012 Camaro 1LS Join Date: Mar 2012 Location: NE Ohio Posts: 174	Thanks for the response I already get the grind at higher rev shifts. __________________ I'm a rebel. I will not allow anyone to dictate what I do, when I do it, or who I do it with. I feel sorry for those that choose to compromise their goals, dreams, needs, and desires to appease the control of another. I believe in freedom. I am an American. -HSJ

06-07-2012, 04:21 PM	#4
JohnnyBfromPeoria Drives: 2012 LS M6, Black Join Date: May 2009 Location: Phoenix, AZ Posts: 2,045	I know the clunk you are referring to; I have it as well. I have had the grind since the day I picked mine up. High rpm shift from 1 to 2 = grind. One day I'll get the master cylinder upgrade from the aftermarket, IdealG. I'll let the dealer deal with the clunk. Seems to be some slop in the differential/half shafts. John B. __________________ 12 LS M6, IPF S/C, ASA GT-5 wheels, VMax PTB 1995 Mitsubishi Montero SR 1987 Dodge Raider Turbo Project 1986 Mitsubishi Montero 2.4l FI Transplant

06-08-2012, 02:38 PM	#5
Bad70supreme Drives: 2010 aqua blue SS/RS M6 Join Date: Feb 2010 Location: plainfield, IL Posts: 2,706	I find it has to do with how and when you push and release the clutch. If your rolling slow push the clutch in and release it at a slower rate seems to keep it from clunking. __________________ 10.91 at 122 H/C stock block N/A

06-16-2012, 12:32 AM	#7
My 5th Drives: 2010 2SS/RS M6 Black on Black Join Date: Jan 2010 Location: Global Citizen Posts: 1,243	GM says the clunk is normal. First car I've ever had that had it though. If the clunk is normal, that means they designed it in and they know what causes it, but they won't elaborate on what "normal" means. Ask a Mustang owner if their car has a clunk. I bet not. I think it's a combination of "slacks" in all the drivetrain parts, but mostly in the rear differential ring & pinion, posi unit, and spyder gears, I wonder if after-market differentials eliminate the clunk. __________________ Meh

06-08-2012, 04:26 PM	#6
Bertelicious DILLIGAF Drives: 2011 SS Join Date: May 2012 Location: El Paso Posts: 33	I get something similar that sounds more like some vibration. Not much of a clunk but definitely something that does not sound right. Does not seem to affect drivability with the exception of being a little annoying. Anyone else have any more info? Service Bulletin? Recall? Would a better Tranny Mount alleviate the issue?

06-16-2012, 12:43 AM	#8
Jayrcr3 Drives: 2011 IOM 2SS/RS Join Date: Dec 2010 Location: Chatham, Illinois Posts: 756	Unfortunately it is normal. I had an 05 CTS-V and it was horrible for the clunk. TherE is a solution for it though, and it is a new polyurethane diff bushing. Just be glad that they didn't build the camaro rear diff out of glass like the previous gen CTS-V. One good hard 1-2 shift in the V would result in a permanent rear diff whine. Sent from my HTC One X using Tapatalk 2 __________________ American Racing 1 7/8" Headers and Hi-Flow Cats, CAI cold air intake, Flowmaster AT exhaust, Vengeance Racing Stage 2 cam, VMax ported throttle body, TEA valve springs and titanium retainers, Trick Flow hardened pushrods, 180* T-stat, Comp Trunion kit, ZL1 Fuel Pump, ADM Fuel Pump Control Module, 20% window tint, Whipple Supercharger. Tuned by Mike Norris Motorsports. 656rwhp/584rwtq @10 PSI.

06-16-2012, 09:53 AM	#9
Cody6.2 Drives: 2012 Camaro 2SS Join Date: Feb 2012 Location: Nebraska Posts: 605	I'm pretty sure it isn't differential movement because C6's do the same thing and there is zero movement as the driveline is all connected. On the Camaro & C6 I think it's just the driveshaft unloading since the shaft is in a static position at all times.