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Drive shaft will not fall out (m) (archive)

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Posted by dudel on August 29, 2001 at 08:23:36:

In Reply to: Check it for visible (m) posted by Bill B. on August 29, 2001 at 08:07:38:

Agree with most of Bill's statements. Bad guibo tends to show up as vibration during acceleration.

A bad guibo, can be a mess, but it won't cause the driveshaft to fall out. The guibo has 6 holes. Each hole has a tube/sleave running from end to end. The tubes contain the bolts (so that they won't rub against the rubber of the guibo. The tubes mate against both the tranny flange and the driveshaft flange. If the guibo were to totally disintegrate, the tranny and driveshaft would still be connected by 6 very strong bolts running in their respective sleaves.

Still, not a good idea running with a bad guibo. I expect a bad one would eventually take out the rear tranny seal and the center driveshaft bearing.


Drove a '90 535i with 109k miles. Under hard acceleration, there was a surging sensation in 1st and a little less in 2nd that WASN'T the engine. My '70 Camaro does the same thing becasue the ring and pinion are worn and a little loose. I've driven 6 5spd BMW's and none of the others did this.

My hope is it's the guibo (rubber donut?) I hear BMW's have, but have never seen. If I put the car up, can I crawl under and move the draft shaft around and see if the guibo is going bad?

If it's not been replaced in 109k miles, it needs doing anyway. We replaced ours at around 61k on a '95 525ia (it wasn't destroyed, but showing cracks). Others have waited until it completely disintegrates, and had their driveshaft fall out. Not a very good idea. Usually it presents itself as a growling noise and/or vibration when it's going bad, if I'm not mistaken.

To be on the safe side, ask for vehicle records and see if it's been done yet. If not, that might be a bargaining chip. Can't remember exactly what it cost us, but it was at least an hour or two of labor, plus at least a $50 part I think.

Bill B.
'95 525ia, 85k

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