so im guessing not? hopefully they do , 45 bucks a peice is a steal!

 

So my rear flex disc is already cracked after only 2 years of use. I do a lot of racing regularly so I'm wondering if there's a company that possibly makes polyurethane discs?
Something like this?
Function 7 BMW Driveshaft Flex Disc Coupling (Guibo) - JDM Honda Parts USA

 

I'm just a tad confused. Some have installed the front/rear using the same part number, others have used 2 part numbers stating that the front/rear are different. What's the consensus?

 

needswings shows two different discs on their web site.

 

will this fit our crossfires?
Mercedes CLK320 E320 E350 Drive Shaft Flex Joint B191 | eBay

 

Don't see why not. And it's free shipping in the US.

 

but should i buy two ? are they the same?

 

Depends on who you ask.
The eBay ad says they are the same front and rear, Rob at NeedsWings says otherwise.
I don't know for sure what the answer is.
Buy 2 from eBay on PayPal, if one doesn't fit, return it.

 

genius sir thank you! i hope they are as reliable as the oem , im at 74k miles on the originals!! they still look good weirdly enough , mechanics told me to leave them alone still

 

The price difference would suggest(and I'm guessing here)that the cheap ones are made in China, and the O.E.M. made in Germany, or anywhere else but China!
In addition, I would certainly trust Rob @ Needswings over an e-bay listing. With this part, anything but O.E.M. is a gamble IMO.

 

If someone went under the car when it was on a hoist it should be possible to see the part numbers on the flexdisks.
The SRT6 part numbers are in this post.

 

Hey guys and gals,

Just read through this thread and I am intrigued since I have been dealing with a lot of vibration on the highway and no-one seems to know what it is. I saw someone in this thread mention vibration, so I though I might want to look into this.

The vibration gets really bad between 70-80mph and seems to level out just a tad above that. I also have some movement when driving slower, like 20mph... kind of feels like I am riding a horse with the slight up and down action.

So far I have done the following to troubleshoot this:

• New Shocks
• New Tires
• New Rims
• 4-Wheel alignment twice
• Had a mechanic look over the suspension and they did not see any obvious signs of bad bushings and such (however, I am not too sure this mechanic knows anything about these cars).
• Had my tires balanced a jillion times as well as road force tested.

Does this sound like the flex discs could cause this behaviour? I've been dealing with this for over a year now and the car is starting to rattle apart I'm sure.

I'm done throwing money at this problem until I can find out exactly what the issue is.

- Frustrated Crossfire Owner