Roadfly.com         Roadfly Home | Features | Car Review Videos | Car Reviews | Cars For Sale | Used Car Parts Classifieds | Forum | Car Review Archives | Forum Archives Index



PDA



WayneM3
01-05-2005, 11:59 AM
When replacing my diff last weekend I noticed that one of the bushings on the top ears was worn (rubber cracking) but since I didn't have another good one (I did have an extra but it was bad too) I put it back in as-is. Now there is a vibration that builds with speed and it is particularly bad between 50-80 MPH so I think that bushing is causing it. First I balanced all 4 tires, then I put the 2 rear wheels up in the air and ran it up and it still vibrated so I am sure it isn't an alignment issue.

I looked in the ETK but can't find a part number for just the bushing. Can anyone else find it?

What would the symptoms be if the half shafts or universal joints were bad? There is no clicking noise - just the vibration that you can't even feel below 50 MPH.

-Wayne

===============================


2001 E46M3 Phoenix Yellow/Black
Mods...what mods?

StMedina
01-05-2005, 12:01 PM
http://www.realoem.com/bmw/select.do?PHPSESSID=c0a9263d0bb237794a37026512839f 9b











<img src="http://members.roadfly.org/STMEDINA/affiliates.gif">

<font color=#660000><font size=1><font>

WayneM3
01-05-2005, 12:22 PM
Someone at my office described my exact symptoms (vibration of entire car at highway speeds) as being a bad U-joint where the driveshaft connects to the diff.

-Wayne

===============================


2001 E46M3 Phoenix Yellow/Black
Mods...what mods?

Rowley
01-05-2005, 12:29 PM
as they seem to be less prone to cracking. I had the older style black ones on my 3.91 diff and they were starting to show little cracks but they still were not overly flexing. I doubt the problem you describe is from these bushings. I would check the guibo or the main diff support bolt as that came loose on me once and caused the same symptoms you described.

WayneM3
01-05-2005, 12:30 PM
===============================


2001 E46M3 Phoenix Yellow/Black
Mods...what mods?


Roadfly Home | Car Reviews | Forum Archives Index