Rear Differential Bearing

e46Laguna · 03-23-2020, 04:30 PM

Car was making a howling noise at the rear end and my mechanic says it is the carrier bearing in the rear diff. I've already replaced the wheel bearings and it's not that. I was wondering if anybody else came across this because as of now my options are to buy a new or a used rear differential. Has anyone else come across this and find aftermarket bearings for the rear diff because BMW will only sell you a whole new diff?

hardparker · 03-24-2020, 08:46 PM

A buddy just trashed his front diff pinon carrier bearing. He managed to find a used diff for $600.

383vett · 03-25-2020, 12:06 PM

Here you go...

https://www.ebay.com/itm/REAR-DIFFER...QAAOSwIUReC0fx

https://www.ebay.com/itm/REAR-DIFFER...8AAOSwj5FdaTx9

doodlebro · 03-26-2020, 12:52 PM

Quote:

Originally Posted by e46Laguna

Car was making a howling noise at the rear end and my mechanic says it is the carrier bearing in the rear diff. I've already replaced the wheel bearings and it's not that. I was wondering if anybody else came across this because as of now my options are to buy a new or a used rear differential. Has anyone else come across this and find aftermarket bearings for the rear diff because BMW will only sell you a whole new diff?

Is the noise happening all the time? I'm trying to figure out a howling noise when I come off throttle below 4K RPM.

rotax · 04-24-2020, 11:54 AM

I have not hear of a carrier bearing in the rear diff thats serviceable, not to say that its not true. I would investigate the "carrier bearing" in the center of the drive shaft and confirm with the mechanic that he knows the sound is coming from the differential and not the center carrier bearing of the drive shaft.

https://www.realoem.com/bmw/enUS/par...&q=26127558745

part 26127558745

03-23-2020, 04:30 PM	#1
e46Laguna Registered 0 Rep 3 Posts Drives: BMW 2015 X3 35i Msport Join Date: Jan 2020 Location: Canada iTrader: (0)	Rear Differential Bearing Car was making a howling noise at the rear end and my mechanic says it is the carrier bearing in the rear diff. I've already replaced the wheel bearings and it's not that. I was wondering if anybody else came across this because as of now my options are to buy a new or a used rear differential. Has anyone else come across this and find aftermarket bearings for the rear diff because BMW will only sell you a whole new diff?
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03-24-2020, 08:46 PM	#2
hardparker Father of Frankenfold 299 Rep 531 Posts Drives: Yo daddy's 2014 X3 M Sport Join Date: Jan 2017 Location: Albuquerque iTrader: (2) Garage List 2013 BMW X1 [0.00] 2014 BMW X3 [0.00]	A buddy just trashed his front diff pinon carrier bearing. He managed to find a used diff for $600. __________________ F25 X3 35i M Sport \| Frankenfold 6662 \| VRSF Race IC \| FTP CP \| BM3 tuned \| XDI-35 HPFP \| Stage 2 LPFP \| Ethanol mixed \| WMI \| Oil cooler \| xHP \| X5/550i brakes
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03-25-2020, 12:06 PM	#3
383vett Major 626 Rep 1,044 Posts Drives: 2018 X3 M40i, 2012 X3 Xdrive35 Join Date: Aug 2012 Location: Moraga, California iTrader: (0)	Here you go... https://www.ebay.com/itm/REAR-DIFFER...QAAOSwIUReC0fx https://www.ebay.com/itm/REAR-DIFFER...8AAOSwj5FdaTx9 __________________ 2016 Z06 Vette, 10.53@132 1984 Vette, 406, 10.23@131 2021 SQ5
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04-24-2020, 11:54 AM	#5
rotax New Member 4 Rep 13 Posts Drives: X3 Join Date: Mar 2007 Location: DC / NOVA iTrader: (0)	I have not hear of a carrier bearing in the rear diff thats serviceable, not to say that its not true. I would investigate the "carrier bearing" in the center of the drive shaft and confirm with the mechanic that he knows the sound is coming from the differential and not the center carrier bearing of the drive shaft. https://www.realoem.com/bmw/enUS/par...&q=26127558745 part 26127558745
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