if you ever need to check a wear item this is it. check this thread from m/b world and see the damage that can occur from the driveshaft flex disk failing. pics are worth a thousand words! (or dollars!!!)
Failure of the Flex Disc on a 12

 

lets see.... one flex plate in front and one in back... that makes two(05127495AA) to buy and keep in the parts bin....

Steve, how well can you see the flex disc when installed??? (no I am not going to go jack the car up and look. Maybe when I do the brakes)

 

sorry mike gotta get under the car. and you need to rotate the shaft to see the entire flex plate. im trying to find out if the srt8 coupler will fit our cars they have a composite coupler that seems to be stronger for the v8 cars

 

I just saw these listed from one of the online suppliers this past weekend and they were only like $200 each. I'll try to find them as soon as I have time.....hockey tonight.

 

any idea if this would fit?
eBay - New & used electronics, cars, apparel, collectibles, sporting goods & more at low prices

 

Here's a nice picture with details and prices for the Crossfire.
Shaft, Drive. Fits: CROSSFIRE 3.2L V6 SOHC 18 Valve, 5-Spd Auto W5J400 Limited Coupe, CROSSFIRE 3.2L V6 SOHC 18 Valve, 5-Spd Auto W5J400 Limited... | FACTORY CHRYSLER PARTS
Maybe MB is cheaper.

More parts.
SLK320
2003 Mercedes SLK320 Driveshaft & Axle Parts - PartsGeek
SLK32AMG
04 2004 Mercedes SLK32 AMG Drive Shaft Flex Joint - Driveshaft & Axle - Febi, Front, Rear - PartsGeek

 

This was it....AutohausAZ and I had looked it up under a 2004 SLK32AMG :

https://www.autohausaz.com/search/pr...@Flex Disc Kit

 

Awesome, something else to worry about

 

Steve, according to that link.... it is not compatible with the Crossfire or the SLK32... too bad to..

 

I will have the back end up and the wheels off for the brakes so it will be no problem.....

 

Wow! now there's some damage! Nice repair also.

 

I am swapping my custom drive-shaft I built during my swap to a standard one piece U-joint shaft. You could use the adapter plate or yokes found here and eliminate the flex discs completely.
FYI- mercedes drive shaft adapter

Update!!! These will not work!!!! The center bore is correct but the bolt hole circles are wrong

 

I had to replace my flex disk. You could see the cracks.

 

Great info. I will check mine on my next oil change.

 

Could somebody get back to me with the correct MB partnumber for the Flex Disc. I have seen several partnumbers out there and I don't know which fits our cars.

 

in order to check it you have to separate the transmission from the motor?

 

RockAuto lists ÜRO PARTS Part # 1704100115 Drive Shaft Flex Disc
for the MB sl320, about $40 a pop .......

amazon.com also has them at $45

 

I see one of the bolts on the diff yoke had come loose by looking at the top hole being oval and rusty. There must have been some serious power to cause the pilot bushing to fail. IMO, there should have been some vibration prior to failure

https://www.crossfireforum.org/forum...ible-disc.html

 

Nice car you got there!

 

No, the disc connects the drive shaft to the trany and diff. yokes