Quote:
Originally Posted by kerry edwards
Bad flexdisc wouldn't explain why part of the shaft is turning and part isn't. It sounds is if the spline that joins the two halfs of the driveshaft let go. Never heard of that happening before. As I recall, there's a big nut that holds the spline in position. Perhaps that loosened up.
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They slid, with a busted disc they can slid forward. The spline never wears out, I checked mine at 250k miles and it was as tight as can be. I could not feel any play.
W126's are tough, the flex disc and maybe the center support bearing are the only parts under there that can fail.