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Old 07-01-2007, 03:09 PM
Brian Carlton Brian Carlton is offline
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Join Date: May 2002
Location: Blue Point, NY
Posts: 25,390
Quote:
Originally Posted by cdplayer View Post
Just my 2 cents worth. But since the w126 is so sensitive to the shake rattle and roll, so to speak, could the front flex disc beginning to wear also cause a sensation of vibration that is carried to the front through it's attachment to the engine/trans. And if you have tired trans/motor mounts, could this vibration be enhanced?

My front flex has one small crack that I can see. So I have moved this necessary repair closer to the top of my list of things I gotta do.
I think not.

Unless the disc has significantly deteriorated and allows the driveshaft to change centerline, vibration won't be affected.

I've proved this with a sample of one on the '86 SDL. I've been chasing a driveline vibration for years and had both discs changed. They had the usual small cracks.......still serviceable. The new discs had no effect on the vibration. I'm about out of options and have to change the driveshaft.
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