: Driveshaft Issues......ANY "reliable" remedies? Any reliable aftermarket answers.



Cadillac_Stokes
01-08-13, 11:15 PM
I have a 2005 CTS-V.....I know about the dual mass flywheel issues & i HAVE replaced the clutch & flywheel. Being that it only shakes when the car is moving...or when there is torque on the driveline....i'm left to assume that its predominantly the driveshaft....Ive heard mostly negative stuff about the G-Force replacement & no one with 'complete' satisfaction. I Don't care to go back with another factory driveline cause if it went bad once....it will go again. Has ANYONE had any 100% satisfaction with an aftermarket replacement??? :confused: PLEASE speak up now...I'd really appreciate your response....

FuzzyLogic
01-09-13, 04:58 AM
I would check and replace all of the bushings, mounts, and couplers in the drivetrain first, and recheck the torque on the the clutch and flywheel bolts. What kind of clutch and slave did you install? After that, the harmonic balancer and the wheels (sometimes balancing weights can fly off or come off when washing--especially if you use aggressive cleaning agents).

There isn't much that can go wrong on a driveshaft, provided that it was balanced correctly.

OneFast V
01-09-13, 09:39 AM
I have a 2005 CTS-V.....I know about the dual mass flywheel issues & i HAVE replaced the clutch & flywheel. Being that it only shakes when the car is moving...or when there is torque on the driveline....i'm left to assume that its predominantly the driveshaft....Ive heard mostly negative stuff about the G-Force replacement & no one with 'complete' satisfaction. I Don't care to go back with another factory driveline cause if it went bad once....it will go again. Has ANYONE had any 100% satisfaction with an aftermarket replacement??? :confused: PLEASE speak up now...I'd really appreciate your response....

DSS carbon fiber driveshaft is the only one I've heard of with no complaints.

Cadillac_Stokes
01-09-13, 12:11 PM
Fuzzy i went with a MONSTER clutch & 18lb flywheel....and it was shaking before i did the clutch....and i thought the flywheel may have been the issue....but apparently its not....Still doing just as much shaking as before.From what i understand,....none of the driveshaft is serviceable....except the bushings on the ends..@ OneFastV; who sells this DSS Carbon fiber shaft?

FoD
01-09-13, 12:23 PM
who sells this DSS Carbon fiber shaft?

The Driveshaft Shop does. There was one on eBay I believe...same price as DSS sells it for.

barrok69
01-09-13, 12:51 PM
Here is the link to the carbon DSS shaft $1499.
http://www.driveshaftshop.com/domestic-driveshafts/cadillac/cadillac-2004-2007-cts-v-1-piece-carbon-fiber-driveshaft

Here are a few points they make about this shaft.
1. Carbon fiber Driveshaft has a critical speed over 250Mph
2. 300m Spline stub for ultimate strength
3. custom 108mm CV with full Chromoly internals
4. balanced on one of the most sophisticated machines in the industry
5. you need to make sure bond areas dont exceed 300 Degrees
6. Carbon fiber shaft will make the car smoother and quieter in the cabin

#5 is the only one that has me concerned and I'm not sure about clearance issues with a 1piece and aftermarket exhaust like corsa, B&B etc..

My DS support bushing is shot and I'm in the same boat as you as far as looking for alternatives to stock, and aftermarket solutions that will not introduce new issues.

Bacon V
01-09-13, 01:20 PM
What is it on your driveshaft that suspect to be bad? When does it shake? Certain speeds?

Id start by checking your motor mounts and your trans mount. Relatively cheap to fix, and they can make a world of difference. They are also known to go bad. The only things that I could see being wrong with the driveshaft are:

- Bad Carrier bearing
- Out of balance (lost a weight)
- Out of balance (bent/dented)
- Bad flex disc which could be caused by bad tranny mounts and mis-alignment

Basically, make sure its the shaft before you replace it. You seemed convinced that it was the flywheel, and it wasnt. Make sure you have a reason to believe the shaft is bad before you blow money on it. Ill take your stock one if you do.

Cadillac_Stokes
01-09-13, 03:29 PM
Thanks for the info BARROK69....Ima let you know what exactly i find out.
BACON Im thinking its the Carrier Bearing....a cadillac tech 'looked' at it and said he felt it looked crooked at the carrier....Now just to make sure i understand properly...the flex discs are the discs that bolt to the differential & the tranny right? if so....you make a good point....I WILL say that seem like whatever it is has to kinda warm up before it vibrates.....wont do it for the first 5min of driving.....but after that ...it feels like you're riding in a giant dildo! As far as motor mounts...it doesn't shake at all when revving the engine in neutral....other than the normal torque movement. ima make sure i keep you guys posted i wouldn't want anyone to go through this crap...

Bacon V
01-09-13, 04:06 PM
My bet would be the carrier bearing support is what causes your vibration. The bearing is mounted in a rubber disc of sorts and over time it will sag. When the disc sags, it can make it look "bent" as your mechanic said. Since the worn rubber doesnt have enough strength to resist radial movement, you can get some hammering of the driveshaft. Theres a video on youtube somewhere that shows it really well. The thing sits steady at some speeds and hammers away at other levels of load. This spring when I get mine out of storage I plan to design and build an aluminum bolt in truss with poly bushing as a replacement. The carrier bearing is "not serviceable" which means you would need a new driveshaft. I think I can make even a "bad" one work, but we'll see what shakes loose.

Here is the video I was talking about

http://www.youtube.com/watch?v=N7W_vOf6CdY

Cadillac_Stokes
01-11-13, 04:01 AM
Wow.......i see.....well with all the research ive done....and having my car just sitting....im think ima go with a one piece unit.....Either G-Force.....or The Driveshaft Shop.....kinda leaning towards the 'Shop' though....if theres anybody that can speak on these....Let me have it cause i think im going to make a purchase in the next week or so....just want the vibration to be gone!

Slow Lane Blues
03-06-13, 05:37 PM
After a nearly a year of ongoing vibration issues with the 2 piece that cam with my 9" kit and attempts to correct, I said no more not being able to drive my car. actually Precision Shaft that makes the shaft told me it was my problem now and to "Get lost" to keep it G rated. So...

I am having a 1 piece made with 2 CVs on each and a custom 9" pinion to accept to CV similar to the factory diff. Hope to eliminate any carrier bearing, U Joint angle issues and end the brain shaking vibrations.

trukk
03-08-13, 12:07 PM
Saggin?

This is what a bad carrier bearing looks like.

http://www.cadillacforums.com/forums/attachments/2004-2007-cadillac-cts-v-general/76649d1308276424-driveshaft-carrier-bearing-cv-joint-old_cb_small.jpg

About 18 months ago, I ended up just going with another OEM, since I didn't like the options available then. They were either vaporware, or were untested on the track (back straight at VIR can see 150ish...wanted validation the replacement could handle that speed, and no one would give it.)

I tried to make a new bearing, but it didn't work out. Sucks having to go back to OEM.

http://www.cadillacforums.com/forums/attachments/2004-2007-cadillac-cts-v-general/76650d1308276424-driveshaft-carrier-bearing-cv-joint-new_cb.jpg

Here is the thread I made about my adventure:

http://www.cadillacforums.com/forums/2004-2007-cadillac-cts-v-general/232968-driveshaft-carrier-bearing-cv-joint.html

-Chris

shadybx7
03-10-13, 05:01 PM
i have the 2 piece DSS shaft. there used to be a slight resonance at differnt spots on the rpm band but now i cant replicate it and i didnt change anything in the setup. i installed the recommend shim by CS. the carrier bracke has still not been perfected but its pretty damn close. Max is still working on it last i heard.

DMM
03-10-13, 09:02 PM
i have the 2 piece DSS shaft. there used to be a slight resonance at differnt spots on the rpm band but now i cant replicate it and i didnt change anything in the setup. i installed the recommend shim by CS. the carrier bracke has still not been perfected but its pretty damn close. Max is still working on it last i heard.

What RPM ranges did this occur? I have a problem with this in 2nd, 3rd, and 4th gears (with fourth being the absolute worst) at 1500-1700 RPM's. Nothing in 5th or 6th though...at all. Not speed related. Wondering if this is the same that others have mentioned.

Naf
03-11-13, 04:03 AM
Change the stock rubber flex for the new revshift, also check all your bolts and alignments, maybe the joint shifted slightly givin your vibration issues

stever06
08-27-13, 03:10 PM
Hi all has anyone come to a conclusion on what is the best way to go when replacing the drive shaft mine is whistling away. There was no real answer in this thread.

FoD
08-27-13, 03:54 PM
Best way? New driveshaft.

05MallettV
08-29-13, 02:47 PM
Since this thread was brought back I was wondering if some might help point me in the right direction. I picked up my Mallett V in May. I had it for a couple of weeks and did "spirited pull onto the freeway. Right then I got a very high pitched whine(not dif noise). At very slow speeds 5-10 its sounds like high pitched machining noise. The weird thing is if I stopped the car the noise went away until I did another high throttle acceleration. I am assuming that this is the carrier bearing. There are no vibrations yet.

Fast forward to the present I have done the Revshift diff bushing, and trans insert to try and clear up the clunk, and now the high pitch whine is almost always present. It is completely speed dependent and is usually quiet for the first min of driving or a couple seconds after stopping. I plan to do the motor mounts in the near future, but I don't think it will help.

Anyone else go through this?

Worst case I need to replace the drive shaft but there are so many better ways to spend $700-1000.

PJGross
08-29-13, 05:16 PM
Here was my "fix":
http://www.cadillacforums.com/forums/2004-2007-cadillac-cts-v-general/261844-fixed-my-corsa-rattle-issue.html

It's been over a year and no issues. I had another thread for the random high pitched squeal at highway speeds and the fix I had was spraying down the bearing with lube about once every 2 months. Since centering the shaft and supporting it with urethane as in the link above, I have not had to spray the bearing and have not had any whining in over a year........ from my carrier bearing. Plenty of whining from the contents of the two kids seats in back though..... :)

I doubt my fix would do anything for the vibration, but I certainly wasn't spending 1000 bucks to fix a whine and the shaft banging around down there. My fix was free but for <$50 you can do this even if you have to buy a better caulk gun.

Good luck,
PJ

stever06
09-03-13, 02:54 PM
That looks like a great DIY preventive maintenance for the carrier bearing. But isn't there anyone out there that has replaced their drive shaft with an aftermarket unit that is happy and has a recommendation other than OEM.

barrok69
09-03-13, 04:07 PM
That looks like a great DIY preventive maintenance for the carrier bearing. But isn't there anyone out there that has replaced their drive shaft with an aftermarket unit that is happy and has a recommendation other than OEM.

I just put in a carbon fiber 3.25" driveshaft from The Driveshaft Shop. It's only been in for a couple days and I know a couple other people that have been running it for a couple years without issue. I would recommend it. It's a quality piece and wakes up the car in the process of fixing the broken stocker.

FoD
09-03-13, 06:10 PM
I replaced mine with a Gforce 2 piece. If you don't like the price of the DSS CF driveshaft, this option is around $900. Been running mine for almost a year, and have zero complaints.

Sent from AutoGuide.com Free App (http://www.autoguide.com/mobile)

Heavybody
09-03-13, 09:29 PM
I just put in a carbon fiber 3.25" driveshaft from The Driveshaft Shop. It's only been in for a couple days and I know a couple other people that have been running it for a couple years without issue. I would recommend it. It's a quality piece and wakes up the car in the process of fixing the broken stocker.

Keep us posted on how this driveshaft is working out!

The driveline issues in this car are so annoying and seemingly unresolved ... A lot of theses vibration/clunk/whine issues seem to various fixes, people try one solution and it works for them but not the next guy. I was sure my clutch was the issue but the more research I do it seems to be a different problems.

My car whines loudly whenever you down shift to 1st gear when slowing down... As well as having a herky jerky condition when backing off the throttle under rapid acceleration ( it can be very unsettling) all very frustrating and apparently resolved with 1500-2000 dollar solutions that may or may not work

Love the engine!! The driveline leaves a lot to be desired

Pillow
09-03-13, 10:30 PM
I have a problem with this in 2nd, 3rd, and 4th gears (with fourth being the absolute worst) at 1500-1700 RPM's.

Yes, it is called lugging the engine. Try a Cummins diesel next time if you choose to putter around at low RPM.


My car whines loudly whenever you down shift to 1st gear when slowing down... As well as having a herky jerky condition when backing off the throttle under rapid acceleration ( it can be very unsettling) all very frustrating and apparently resolved with 1500-2000 dollar solutions that may or may not work

Take the 1500-2000 and invest in driving lessons. Your V and passengers will thank you for it.

2007V
09-04-13, 12:15 AM
I read that anything other than the OEM DS causes more noise from the rear end to be transmitted into the cabin. Is that true for the carbon fiber version?

Tom400CFI
09-04-13, 01:39 AM
Here was my "fix":
http://www.cadillacforums.com/forums/2004-2007-cadillac-cts-v-general/261844-fixed-my-corsa-rattle-issue.html

It's been over a year and no issues. I had another thread for the random high pitched squeal at highway speeds and the fix I had was spraying down the bearing with lube about once every 2 months. Since centering the shaft and supporting it with urethane as in the link above, I have not had to spray the bearing and have not had any whining in over a year........ from my carrier bearing. Plenty of whining from the contents of the two kids seats in back though..... :)

I doubt my fix would do anything for the vibration, but I certainly wasn't spending 1000 bucks to fix a whine and the shaft banging around down there. My fix was free but for <$50 you can do this even if you have to buy a better caulk gun.

Good luck,
PJ
I just did this same repair on mine. I think that it will help with vibrations; if the tail end of the shaft falls b/c the rubber is sacked out, then it is no longer in the same plane as the trans output shaft, and I feel that could cause vibes. In the following pics, the shaft is out of the car, and the carrier bearing is upside down to center it...why the filler appears to be on the "top" when it's really on the bottom. Any way, here are a few pics of my free fix...

FRONT SIDE:
http://i176.photobucket.com/albums/w165/Stormer861/photobucket-2353-1378272994133_zpsc5d0cc7c.jpg (http://s176.photobucket.com/user/Stormer861/media/photobucket-2353-1378272994133_zpsc5d0cc7c.jpg.html)

REAR SIDE:
http://i176.photobucket.com/albums/w165/Stormer861/photobucket-12130-1378273020544_zps45334008.jpg (http://s176.photobucket.com/user/Stormer861/media/photobucket-12130-1378273020544_zps45334008.jpg.html)

Heavybody
09-04-13, 11:36 AM
Take the 1500-2000 and invest in driving lessons. Your V and passengers will thank you for it.

Wow thanks for the insight! You must right knowing absolutely nothing about me besides what you gathered from one post ...

Pillow
09-05-13, 10:14 AM
Read what you posted again in the original and tell me that any of that mess was an indication of smooth driving?

Full throttle to off throttle abruptly of course will cause power transfer issues... Most cars just don't have enough power to notice.

Why would you shift into 1st while moving? The only thing I can think of is entering driveways and other ultra slow maneuvers. Even in Auto-X you rarely, if ever, go back into 1st. If you are rowing the gears down while rolling into traffic lights and such, that is unnecessary wear and tear on the synchros. Just dump it in neutral and coast in.

I'm not trying to tell you how to drive, just look at what you posted and tell me that both scenarios don't sound like you are beating on the V.

Tom400CFI
09-05-13, 11:46 AM
This is getting off topic, but I don't see a problem with Heavybody's description of driving. 1500-1700 RPM is absolutely NOT "lugging" the engine. Down shifting? You should be able to do that. I may not shift down to first at every stop...but you should be able to w/no ill consequences. And heavy throttle followed by chopped throttle? Yeah, that is definitely "jerky/rough driving", but again...car should be able to take that with absolutely no problems at all.

My recommendation to Heavybody would be to get under the car, and have a look. A better description of the problem would help here too. "Herky jerky condition when backing off the throttle under rapid acceleration"...well yeah, that is herky jerky driving so....what are you trying to say the car is really doing?

What is the car doing? Is it unsafe? Does it make thumping noises?

Heavybody
09-05-13, 10:05 PM
First and foremost I do on occasion drive my car aggressively (a situation I am sure almost all of us have done due having purchased a high performance vehicle)


I compare the issue I have against my buddy's 01 Camaro SS which has dynoed 340hp at the wheels (right in the same window as a stock V) his car behaves far differently under the same conditions... I attribute most of that to the more solid drive train (no dual mass flywheel, solid rear axel, I believe single piece drive shaft) the Camaro is more predictable and will take any of the driving inputs I described before with no issues. He has noticed the same issues in my car (I would even admit he is a smoother or better driver than I... Just don't tell him that)

I know the difference between rough/ sloppy driver inputs versus a more mechanical issue at this point in my life ... Looking back i was in a bad mood when I replied ...lol

I feel there is an overall sloppy feeling in the drivetrain and when $$ permits I will address it but I would like to do so as inexpensively as possible... And yes I need to get under the car to investigate further.

----------

And to better answer Toms questions the car is safe it just seems to rock or lurch forward and then back when backing off the throttle (and yes sometimes I do this in a less than smooth fashion which does intensify the problem) but it can happen under smoother and less aggressive conditions as well. Car just seems over sensitive compared to any other vehicle I have driven.

JFensty
09-06-13, 01:02 PM
The V does take some getting used to, to drive correctly. I have a ls7 clutch and there is and always will be some play in the drive train. Unless of course you do a 9"/8.8" swap and one piece ds.

I would recommend inspecting the coupler, carrier bearing and slip joint for excessive play.

Tom400CFI
09-06-13, 04:09 PM
I agree with the above and also your diff bushings. I put a Gopro under my car and filmed the diff movement and OMG....it flopped around a LOT!

https://www.youtube.com/watch?v=hZTku3U5ttw

In comparison, here is the (lack of) diff movement in my C4 Corvette. FF to 7:25, and also 8:50:
https://www.youtube.com/watch?v=8Lr-QFH7E_A&feature=player_embedded

barrok69
09-07-13, 11:20 AM
Part of the problem is in the stock setup you have a floating diff attached to a floating cradle....all coupled to a motor/trans that is essentially floating. It's a whole lot of movement in every direction. Once you shore up the cradle bushings and secure the motor/trans with good mounts the only thing left to replace is clutch and driveshaft, whichever you can tolerate leaving alone the longest. I can live with the clutch clunk for now. My driveshaft was flopping all over the place so it had to go. I've been extremely happy with my Carbon DSS. It gives the car a much more "direct power to the pavement" feel losing all the windup that the stock setup creates.

In essence by fixing these weak links you are going to achieve more power to the ground sooner. Because if you have a bushing that is flexing or displacing it is basically stealing torque that is otherwise supposed to be going to the rear wheels.

Heavybody
09-08-13, 11:21 AM
Tom your video is crazy ... All that movement sure would explain the feel of my drivetrain! Looks like I have a list of projects for the V's hibernation this winter

Tom400CFI
09-09-13, 02:21 AM
I know it. I couldn't believe it when I watched it the first time. Hard to believe engineers felt that amount of compliance was necessary...or O.K.

stever06
09-10-13, 05:37 PM
Any one running the one piece aluminum dyno tech driveshaft from G-force. It looks pretty good wondering how its holding up.
Also anyone running the one piece aluminum from DSS. Both are the same price with a small design change. I like the one piece design. Anyone have any opinions on these drive shafts.

barrok69
09-11-13, 07:41 AM
Any one running the one piece aluminum dyno tech driveshaft from G-force. It looks pretty good wondering how its holding up.
Also anyone running the one piece aluminum from DSS. Both are the same price with a small design change. I like the one piece design. Anyone have any opinions on these drive shafts.

I didn't bother with the aluminum ones due to their low rated critical speed of 150mph. These cars can well exceed 150 and I wanted a nice margin of safety factor.

Heavybody
09-11-13, 10:46 PM
Just re read barrok's CF drive shaft thread and I think the condition I have is the "bucking" he described with his old drive shaft...


Looking forward to resolving the drivetrain issue soon it really takes away the enjoyment from driving the V

05MallettV
09-12-13, 11:21 AM
Is there anyone in the Midwest, or Detroit area that has a spare stock drive shaft that would like to contribute it to R&D towards a solution? I have some connections to GKN (GM's original supplier) and I would like to start working on a real solution to this. If not, I will commit my own drive shaft once my V goes away for the winter.

stever06
09-12-13, 02:51 PM
sorry gotta use mine its daily driver and the whine from the carrier bearings getting worse.

04cts v
11-05-13, 07:04 AM
Any one running the one piece aluminum dyno tech driveshaft from G-force. It looks pretty good wondering how its holding up. Also anyone running the one piece aluminum from DSS. Both are the same price with a small design change. I like the one piece design. Anyone have any opinions on these drive shafts.

I stopped by the DSS shop and was not impressed with their customer service, so I took my business to G-Force. The G-Force 1-piece aluminum driveshaft looks great, was easy to install and made a big difference in my drivetrain feel...plus I got rid of that carrier bearing whine.

I'm not worried about the 150mph restriction...there are not many roads in my area that would permit that type of speed :)

Highly recommend G-Force...it makes almost as much of a difference in feel as getting a new clutch!