Replacement Vertex Center Driveshaft Support Bearing Bushing [PICS] [VIDEO]
#16
04-30-2013, 04:01 PM
This is my theory as well. This would also explain why on WOT (around corners) on the original new driveshaft, I still had slight knocking. I have yet to hear any knocking on this design. It just restricts the lateral movement of the bearing to a much greater degree.
Considering that a company designed an aftermarket replacement to address the concerns of the stock design, means that a company saw enough issues in the field to warrant R&D, obtain a patent (not cheap), and possibly profit from these issues moving forward. From what I hear, which maybe exaggerated, they are having no issues selling these replacements on a daily basis. From my own knowledge, this product has been on the market for over a year with no complaints in sight (at least that I could find).
For me, since this part is known to fail prematurely, it only makes sense to make this a serviceable part. The fact that you can replace this part without having to remove the driveshaft or drop the exhaust is a huge gain in my book. Even if the individual supports start to wear, they state that they will provide replacements. Once again, a huge improvement over the stock unit where Porsche will not just let you replace the bushing itself - which is absurd to replace a complete driveshaft, when the just the bushing should be replaced.
For me, since this part is known to fail prematurely, it only makes sense to make this a serviceable part. The fact that you can replace this part without having to remove the driveshaft or drop the exhaust is a huge gain in my book. Even if the individual supports start to wear, they state that they will provide replacements. Once again, a huge improvement over the stock unit where Porsche will not just let you replace the bushing itself - which is absurd to replace a complete driveshaft, when the just the bushing should be replaced.
I like the idea of an upgraded part! Just questioning if this is an "half step" or a real solution. Maybe its masking a greater issue? Maybe the bushing is acting like a fuse and this is just pushing the issue further down the line to the next weak link? If this isn't allowed to flex where is that energy going? Transmission or differential bearings?
Edit: Maybe a more solidly mounted drivetrain (engine and trans mounts) would prevent this failure! Maybe its excessive drivetrain movement that is prematurely eating your bushing, not the bushing itself!
#17
04-30-2013, 07:33 PM
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#18
04-30-2013, 07:40 PM
Just discuss the facts around the product and the actual failures of the stock part. 
I just hate to see marketing hype blown up without real data!
#19
04-30-2013, 10:26 PM
......Maybe the bushing is acting like a fuse and this is just pushing the issue further down the line to the next weak link? If this isn't allowed to flex where is that energy going? Transmission or differential bearings?
Edit: Maybe a more solidly mounted drivetrain (engine and trans mounts) would prevent this failure! Maybe its excessive drivetrain movement that is prematurely eating your bushing, not the bushing itself!
Edit: Maybe a more solidly mounted drivetrain (engine and trans mounts) would prevent this failure! Maybe its excessive drivetrain movement that is prematurely eating your bushing, not the bushing itself!
The hydraulic engine mounts do settle over time.
Would this lead to abnormal strain being placed on the downstream components such as the cardan shaft center bearing?
#21
05-02-2013, 12:02 AM
i expect in the next year or so, if the vertex part doesn't function as advertised, we will know about it.
#22
05-02-2013, 08:26 AM
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Yep! I will let the group know if it fails me in the next couple years. Right now, it is doing better than my OEM replacement that I got last May.
#24
05-05-2013, 12:22 AM
Kinda hard to believe that every failure is from people ripping their SUV around corners. Most Cayennes are driven like my other SUV.
Maybe you should go read the "driveshaft survey" over on rennlist. More owners surveyed than just your personal experience. Results seem to be most failures over 60k and some as high as 120k or more with no issue at all. And of course this is just the owners that participate in forums.
Just because someone makes something doesn't mean its better. That has yet to be seen. Which is my only point here. We don't actually know the cause of the failure, only the resulting torn bushing. What about the bearing?
I like the idea of an upgraded part! Just questioning if this is an "half step" or a real solution. Maybe its masking a greater issue? Maybe the bushing is acting like a fuse and this is just pushing the issue further down the line to the next weak link? If this isn't allowed to flex where is that energy going? Transmission or differential bearings?
Edit: Maybe a more solidly mounted drivetrain (engine and trans mounts) would prevent this failure! Maybe its excessive drivetrain movement that is prematurely eating your bushing, not the bushing itself!
Maybe you should go read the "driveshaft survey" over on rennlist. More owners surveyed than just your personal experience. Results seem to be most failures over 60k and some as high as 120k or more with no issue at all. And of course this is just the owners that participate in forums.
Just because someone makes something doesn't mean its better. That has yet to be seen. Which is my only point here. We don't actually know the cause of the failure, only the resulting torn bushing. What about the bearing?
I like the idea of an upgraded part! Just questioning if this is an "half step" or a real solution. Maybe its masking a greater issue? Maybe the bushing is acting like a fuse and this is just pushing the issue further down the line to the next weak link? If this isn't allowed to flex where is that energy going? Transmission or differential bearings?
Edit: Maybe a more solidly mounted drivetrain (engine and trans mounts) would prevent this failure! Maybe its excessive drivetrain movement that is prematurely eating your bushing, not the bushing itself!
With what you are saying, it looks like it's largely due to the owners driving habits. But just to mute you, I've known two guys who had there bearing go out at 30K miles and 75k miles. And both have replaced with vertex center support bearing and have over 70k miles, 125k miles on the vertex auto respectively. Although this is just two people, it shows the product is in fact working. Also, if you do more research and look at how big of a problem this really is, then you would be quite amazed.
I think you should call vertex and let them enlighten you with facts/information of their product, instead of you speculating what the problem is. Just my $0.02.
Last edited by nuttersandy; 05-05-2013 at 06:35 AM.
#25
05-05-2013, 06:53 AM
But just to mute you, I've known two guys who had there bearing go out at 30K miles and 75k miles. And both have replaced with vertex center support bearing and have over 70k miles, 125k miles on the vertex auto respectively. Although this is just two people, it shows the product is in fact working. Also, if you do more research and look at how big of a problem this really is, then you would be quite amazed.
I think you should call vertex and let them enlighten you with facts/information of their product, instead of you speculating what the problem is. Just my $0.02.
I'm calling total B.S. on your statements. Even if these two guys have racked up 70k and 125k on the bearing your sample size is still 2! If you go look at the polls there are many(many more than 2) owners with 70k and 125k on the stock bearing set up. So this doesn't really prove crap. Which you are still full of if you know not one but two people that have driven more than 70k in the last year
As for calling a company to get "facts" that is the last reliable source for information. The snake oil salesman will always tell you the "fact" that his product will cure whatever you have!
Last edited by Renaissance.Man; 05-05-2013 at 08:06 AM.
#26
05-05-2013, 08:05 AM
Join Date: Jan 2011
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Rep Power: 103 Cole,
With what you are saying, it looks like it's largely due to the owners driving habits. But just to mute you, I've known two guys who had there bearing go out at 30K miles and 75k miles. And both have replaced with vertex center support bearing and have over 70k miles, 125k miles on the vertex auto respectively. Although this is just two people, it shows the product is in fact working. Also, if you do more research and look at how big of a problem this really is, then you would be quite amazed.
With what you are saying, it looks like it's largely due to the owners driving habits. But just to mute you, I've known two guys who had there bearing go out at 30K miles and 75k miles. And both have replaced with vertex center support bearing and have over 70k miles, 125k miles on the vertex auto respectively. Although this is just two people, it shows the product is in fact working. Also, if you do more research and look at how big of a problem this really is, then you would be quite amazed.
#27
05-05-2013, 08:07 AM
Join Date: Jan 2011
Location: (in my garage welding something vicious)
Posts: 1,505
Rep Power: 103
Cole,
I edited your post (#25) and removed a confrontational statement. There is no reason not to welcome all opinions and perspectives.
Consider this an initial warning to play nice
I edited your post (#25) and removed a confrontational statement. There is no reason not to welcome all opinions and perspectives.
Consider this an initial warning to play nice
#29
05-05-2013, 12:33 PM
Join Date: Jan 2011
Location: (in my garage welding something vicious)
Posts: 1,505
Rep Power: 103
#30
05-06-2013, 10:16 AM
The Vertex bushing has been out since about July of 2011 (advertised in August 2011 issue of Panorama). I took his statement to mean total mileage accrued, which would be 40k, and 50k on the bushings respectively. Still a lot, but possible. Note, that I have never used the Vertex bushing, and am in no way endorsing it.
