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Help! Snapping Rear Carrier bolts!! 99m3 extras (archive)

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Posted by M3Kmprsr on January 29, 2001 at 22:09:08:

I was hoping someone could help me out. I have a 99 m3 with a 10 psi supercharger, 30 lb injectors, split second fuel computer, flywheel, exhaust, and nitto drags etc.
Ok the problem I am having is with the rear carrier bolt. There is one main carrier bolt that holds the botton front of the diff to the carrier brace. After the first time I did the work on the car, I would snap one every 2 months or so. There not that bad at 1.97 a piece but the dealer sure wonders why I buy so many each time.
Well, Now I can go through them in less than a day. I cannot figure out why these are breaking soooo fast.
Now, I am no expert but I did design the supercharger for the car and installed everything on my own. (for those who want to see the installation do a search for my name and 12.86 . Thats what the car ran when I posted photos of it. Either way, I know a bit about mechanics and I've looked for EVERYTHING possible that could be causing this and nothing!!!
I am hoping someone might of had this problem and found a solution. I do not think changing back to regular tires is going to help because I am breaking them without even bringing the boost up.

Please help and thanks in advance.

[email protected]

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