Quote:
Originally Posted by templarklimek
I'm no expert but those bolts BMW is using looks the same as I can get from the local hardware store for 35 cents....  that's what holding the diff together, yikes! |
Bolts sold at your local hardware store are 4.1 grade, IF they are marked/graded at all. BMW's bolts are 10.9 grade. Yes, they can break, but its rare. I suspect what's causing some of these bolts to break is launching hard from a stop or getting crazy axle hop doing 0-60 mph runs.
Dackel