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      12-07-2012, 10:11 AM   #31
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SamS's Avatar

Drives: 2016 M3
Join Date: Jul 2010
Location: Dallas, TX

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Originally Posted by bvanderbilt View Post
Sorry, what are you talking about? Did you look at the pictures? There's no broken fin . There is slight abrasion maybe 1/8" of an inch in area to the aluminum that resembles pitting from small rocks, e.g. normal wear and tear. All the fins are intact, but you can't see them, the picture is from the side.

The diff cover is made out of soft aluminum. No rational person would conclude some abrasion to soft aluminum would be responsible for the break of a steel high-tensile strength 10.9 bolt.
Yeah I saw it. The circled part looks like a chunk came out. Maybe it is the angle or the flash? I don't recall my diff ever having that kind of visible damage. I know it hangs awful low, but you hit something alright.

I may have missed this... why not try an insurance claim via some road hazard situation?
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2016 M3 - current
2013 ActiveHybrid 3 - sold
2012 M3 coupe - sold