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-   -   Bad sounds coming from the tunnel to the rear of car (http://www.clubcobra.com/forums/backdraft-racing/77688-bad-sounds-coming-tunnel-rear-car.html)

Dinobyte 04-01-2007 10:31 AM

Quote:

Originally Posted by Trueoo7
My guess is that when the left rear trailing arm came apart that put a lot of stress on the front diff bolt which caused it to break. Main reason why I think that is because in the picture he shows the broken bolt which should have fallen out somewhere on the road. So it couldn't have been broken for very long at all. It probably happened simultaneously.

When I replaced mine I made sure I put a lock washer under the head and check it every once in awhile.

Dino, what is Tony's feeling on this as to why it broke because in the picture that looks like the upgraded 10.9 bolt?

Tony indicated the bolt should not have broken, that the engineers tested this and it much stronger than the orginal...I am paraphrasing...

Dinobyte 04-01-2007 07:02 PM

Thought I would post this of the backend...

http://www.clubcobra.com/photopost/d...ighlighted.JPG

No. Description Supplement Qty From Up To Part Number Price Notes
01 REAR AXLE CARRIER 1 33311092625 $602.64
02 SET RUBBER MOUNTING D=60,5MM 1 33319059300 $46.04
03 SET RUBBER MOUNTING D=62,5MM 1 33319059301 $46.04
04 RUBBER MOUNTING 1 33171134910 $27.34
05 THREADED BOLT 2 33311136428 $6.25
06 COLLAR NUT M12X1,5 2 33311133463 $1.12
07 REDUCED-SHAFT BOLT M12X1,5X116-8.8 2 33321094476 $2.40
08 STOPPER 4 33331132546 $1.28
09 VIBRATION ABSORBER 1 33311090337 $79.52
09 VIBRATION ABSORBER 1 33316770851
10 COLLAR SCREW M12X1,5X65 1 06/1993 33321091100 $1.34
12 FLAT WASHER D=40MM 1 26111226237 $2.05
17 HEX BOLT WITH WASHER M12X1,5X80 ZNS 1 33176750780 $1.58

Here is the website I found this information on...http://www.realoem.com/bmw/showparts...66&hg=33&fg=30

The number 17 bolt is the one that sheared.

ROUSHAC 04-01-2007 07:39 PM

That site is a nice find, Dynobyte!

Thanks!

Dave


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