2008 cadillac cts drive shaft support bearing replacement

Hi new to the forum, had the thump upon hard acceleration, saw the torn(non-existent) rubber bearing surround on the center support bearing. Ordered a dorman 934-620 replacement listed for 08 -14 cts awd. Removed the driveshaft and cannot figure out how to separate the driveshaft to install the bearing. Several posts indicate that its not possible, that I need an entire new driveshaft assembly. Anyone successfully changed the center support bearing on an awd cts? Did this same job on my 06 cts without a hitch. Any thoughts most welcome. thx

Welcome-

I recall reading someone who successfully did this.
I'm not certain if the posts were super descriptive, but I'll see if I can round up the thread and post a link.

Welcome-

Great thanks for you help.

OK--searched for a while and came up with a thread, but it wasn't the one I recalled.
There are two people who did mention replacement of the center carrier bearing, perhaps you may get a response from them with some additional information.

@Mullah88 ...any info here?

2009 CTS-4 driveshaft flap/knock noise?

WOW! I do a little searching on the driveshaft carrier bearing and look at what I find. I have an 08 CTS rear wheel drive. On moderate acceleration from a stop I feel a thump beneath the car. I suspected the infamous differential bushing until research revealed that GM redesigned the mount...

www.cadillacforums.com

There was a guy who successfully able to change the center support bearing on the CTS-V1
I think he does something with out cars also. He goes by VOODOCHICKEN

The AWD drive shaft is uniquely different from the RWD drive shaft which apparently all CTS-Vs are, so not sure how much help the reference will be. I was told by a drive shaft shop that some of them are not rebuildable, but that was a couple years ago and it stands to reason that anything of this nature that can be put together, can be taken apart, however, in order to rebuild it, parts must be available and that may be where the trouble is.

The problem with some aftermarket performance parts, which I believe are offered by VOODOOCHIKIN, is that some ride comfort may be sacrificed if polyurethane is used in place of the rubber bushings as more vibrations are transmitted through the car.

IIRC the Voodoochikin bearing did work for the AWD shaft; Mullah88 may be able to confirm this.
The availability was sporadic and the price was steeper than the Dorman unit, but the Dorman piece was blasted (albeit there was only one testimonial, so installation error could fall into play) as being "junk".

The answer to the question "Has anyone replaced just the bearing" is yes.
I am hopeful that someone who has done it will chime in with specifics including a long term, post installment update.

I have a spare shaft that I still would like to put one of these bearings on.. There was talk that the stiffer bearing caused more vibration but was much longer wearing. Not sure where the thread is but there was one about that.

Rodney

This is the one I was thinking of, but again, inconclusive...

@Iamfrankiebrown ... any updates?

well it can be done, just finished. Lots of marking parts alignment and soft mallet tapping. Don't want to call this a success until its spinning under the car but I feel pretty good about it. Dorman part didn't fit exactly. Careful disassembly let me reuse. some original components. If this wasn't possible I was going to pour my own polyurethane bushing in place as only the rubber was destroyed. Theres a guy using Reoflex 60 on youtube. I would have used the more flexible Reoflex 40. Glad I didn't have to make that mess. thanks to all who chimed in to my first post. Will post how it rides soon. Whats with all the greyed out circles on the right side of the posts- can read complete posts. thanks all

I had no idea such a resource was available for my exploitation. You have moved me one step closer to the Mad Scientist Hall of Fame, as well as helped me discover by accident that I can select edit a quote by highlighting what I want to include.

well it can be done, just finished. Lots of marking parts alignment and soft mallet tapping. Don't want to call this a success until its spinning under the car but I feel pretty good about it. Dorman part didn't fit exactly. Careful disassembly let me reuse. some original components. If this wasn't possible I was going to pour my own polyurethane bushing in place as only the rubber was destroyed. Theres a guy using Reoflex 60 on youtube. I would have used the more flexible Reoflex 40. Glad I didn't have to make that mess. thanks to all who chimed in to my first post. Will post how it rides soon. Whats with all the greyed out circles on the right side of the posts- can read complete posts. thanks all

Looking forward to an update--pics would be a plus.
The greyed out circles are probably due to the server you're surfing the forum with.

I replaced mine with a Doorman bearing. Pian in the ass to split the shafts apart to get the bearing on and now it’s knocking again. I’m just going to buy a whole new driveshaft this time

I replaced mine with a Doorman bearing. Pian in the ass to split the shafts apart to get the bearing on and now it’s knocking again. I’m just going to buy a whole new driveshaft this time

I learned 20 yrs ago not to fool with Dorman parts after several brand new worthless clutch master and slave cylinders, as well as observed a number of new, problem Brake mastercylinders. This is definitely a name brand quality part job; OE, SKF, Timken, Moog, etc...

Hi new to the forum, had the thump upon hard acceleration, saw the torn(non-existent) rubber bearing surround on the center support bearing. Ordered a dorman 934-620 replacement listed for 08 -14 cts awd. Removed the driveshaft and cannot figure out how to separate the driveshaft to install the bearing. Several posts indicate that its not possible, that I need an entire new driveshaft assembly. Anyone successfully changed the center support bearing on an awd cts? Did this same job on my 06 cts without a hitch. Any thoughts most welcome. thx

Replaced mine on an 08 RWD. After some research a bearing was found and it appears it is the same as on the AWD and RWD (at least on the 08s) but I could be wrong. Sorry I don't have a part number but the part is out there. My mechanic was able to do the work with not too much effort but it did take time. Hope this helps some.

I changed mine with a gear puller and then a piece of pvc but its was rear wheel drive. I did have to tap the shaft out of the splines with a rubber mallet