With the 87 190e I have isolated the drive shaft noise to a "Coupling" behind the transmission. The drive shaft is solid from the differential forward including the flex disk, but just ahead of the flex disk is what is loose and is making a slapping sound.

Would someone tell me what this part is.

Also, is this the part where the trans brace needs to be removed?

Thanks in advance,

haasman

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'03 E320 Wagon-Sold
'95 E320 Wagon-Went to Ex
'93 190E 2.6-Wrecked
'91 300E-Went to Ex
'65 911 Coupe (#302580)