Rear Drive Parts - BMW Luxury Touring Community
 
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post #1 of 8 Old Aug 23rd, 2006, 2:27 pm Thread Starter
 
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Rear Drive Parts

I'm having trouble searching the forums to find the 17 ball bearing part number and the big seal. Help. Help. I'm packing for Georgia. Can someone tell me the part numbers?
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post #2 of 8 Old Aug 23rd, 2006, 2:54 pm
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Howdy:

I just had mine replaced yesterday.

I have the invoice at home and will be there in about an hour and post the part numbers.

Best regards, tony
Northville, MI
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post #3 of 8 Old Aug 23rd, 2006, 7:03 pm
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Originally Posted by johnmckinley
I'm having trouble searching the forums to find the 17 ball bearing part number and the big seal. Help. Help. I'm packing for Georgia. Can someone tell me the part numbers?
I think the 17 ball ball bearing just happened to be the cheap "supplier of the month" when the inventory got low. It was never oficially recognized as an upgraded part. I have seen the same part number on the boxes and different bearings in each. It's a crap shoot as to which you will get.

FWIW from the Max BMW parts fiche.

Seal 33127663482
Bearing 33121242210

Good Luck

Duane

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post #4 of 8 Old Aug 23rd, 2006, 8:09 pm Thread Starter
 
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Rear Drive Bearings and Seal Part Number

If memory serves me correctly, there have been no recorded failures of 17 Ball parts. Dave Healy and others surmised several years ago that the root cause of failure was the cage coming apart, not the balls or races. With less balls, the 17 ball assembly has more room for the cage and consequently is stronger.

Of course BMW did not acknowledge the change - that would have been an admission of their screwup and would have unleashed more warranty claims and maybe even NHTSA attention.
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post #5 of 8 Old Aug 23rd, 2006, 8:16 pm
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Sorry for the tardiness.

Here is the part number

33121468899 Bearing
33127663482 Shaft seal

Best regards, tony
Northville, MI
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post #6 of 8 Old Aug 23rd, 2006, 9:21 pm Thread Starter
 
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Tony,

Thanks. Any idea whether that was the 17 ball or 19 ball?
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post #7 of 8 Old Aug 24th, 2006, 2:25 am
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Quote:
Originally Posted by johnmckinley
With less balls, the 17 ball assembly has more room for the cage and consequently is stronger.
That is the theory based on our best guess, but it was never proven that was BMW's intent. Unless BMW decides to share its design process, then it's all just a guessing game for us lowly end-users.

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post #8 of 8 Old Aug 24th, 2006, 8:22 am
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Howdy:

This is the 19 ball one, sorry, I see you are looking for the 17.

Here is another thread about the 19, I think it might be your only choice.

http://www.bmwlt.com/forums/showthre...ear+drive+ball

Best regards, tony
Northville, MI
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