Turns out the part I ordered from the 2004 Service Catalog is wrong - 05127495AA < this part is for the DGU N/A 5-speed Automatic transmission.

My mechanic pulled my original apart and said they are different in diameter...crap!!!

The N/A DED 6-speed manual transmission is a different part (which is what car I have) and for the life of me cannot work out why the service manual does NOT list the damn part!

I need to go source this part locally TODAY, can anyone please help me locate a part number (can be mercedes or other brand, does not have to be chrysler OEM) for a 2004 N/A manual transmission please!