Since I've just had my driveshaft and guibo replaced, I'm wondering if there's generally a specific reason for them to fail. I would rather not have to replace them again because of something else that's wrong with the car. Any ideas?

Torque causes fatigue failures, along with bearing failures. Heck, the guibo is a rubber torroid. It isn't going to be terribly sturdy.

wear and tear....

It's just like any other bushing... it gonna need replacing after time.

I speculate that a bad center bearing would exacerbate the wear. Maybe really bad diff or tranny problems. High 2nd-order acceleration seemed to make mine louder when it was worn, so it makes sense that it'd shorten the disk's life. Other than that...just wear and tear.

The main reason I'm curious, is because I feel a very similar vibration in my shifter when under hard acceleration in first. It's a slight vibration, but it feels like the same 'rhythm' that my driveshaft had before it was replaced.

The main reason I'm curious, is because I feel a very similar vibration in my shifter when under hard acceleration in first. It's a slight vibration, but it feels like the same 'rhythm' that my driveshaft had before it was replaced.

since the driveshaft has been replaced recently... you might want to look at related parts. transmission mounts, engine mounts, etc...

Will do, thanks.

I ave a diffrenet case which is I always get a Guibo broken or melt and rubber will remain with no issues, I'll show a pic Later

I still can only notice this in first gear under heavy acceleration, but it seems like it might be getting worse. Might just be me getting more paranoid. But I am going to make an appointment soon to get it checked out.

I still can only notice this in first gear under heavy acceleration, but it seems like it might be getting worse. Might just be me getting more paranoid. But I am going to make an appointment soon to get it checked out.

After I got my guibo replaced and drove the car home, I experienced the same vibrations and noise that I had when it was half-worn. I called the mechanic up and told him that I was still getting the vibration and noise, so he said to bring it back down to have another look. Turns out that the vibration was caused by the exhaust heatshield plate rubbing against my driveshaft. It took all of 2 minutes to bend the heatshield back into place and 99% of the vibration vanished.

I suppose that could be a possibility. It's only in the shifter handle though. I can't feel it in the car at all. And I can't feel it any other time except quick acceleration in first.

BMW Driveshafts must be very balanced and lined up within precise tolerances. If you have an ETK, check the special tools section for specs and tools used by the dealer to align the shaft. The entire drive train from transmission output shaft bearings, u joints, guibo, center bearing, CV joints and Diff input bearing are part of a moving mass that, if unbalanced, worn or misaligned at any point will cause vibration and premature failure.

You can see how motor mounts, transmission mounts and even diff sub frame bushings have a role to play also. I have enclosed a couple of general links that may help those interested further understand the issue. The second one relates to Volvo's but the principles and setup are the same on these cars withe center bearings etc. In fact some Volvo's even use ZFHP22 trannys. There's nothing more frustrating than an unwanted vibration. Good luck

http://www.babcox.com/editorial/us/us50126.htm

http://www.volvoclub.org.uk/faq/Driveline.html#DrivelineVibrationDiagnosis

http://www.4x4wire.com/toyota/tech/driveline/