Quote:
Originally Posted by uncle335i
Sounds like you blew your rear or front differential. X drive is a rear wheel drive bias so it should move even if you blew your front diff. F30's have historically weak differentials in rear. The ones that go seem to go at lower mileage. I have seen a zf8 break gear train components inside but at that point it did still have 2nd and 3rd but no reverse.
If it is the diff, grab a used one from car-part.com, its far less expensive than the dealer. If you find one with over 60k on it, it'll probably last the life of the vehicle.
Further to that, unless it's in park, the transmission will free wheel in neutral slightly and will spin the broken pinion gear (assuming that's what's shattered)
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From your mouth to God's ears uncle! I'm really hoping it's the rear end (my car is RWD).
I've been looking for an excuse to upgrade to the M-Performance rear diff and suddenly the cost doesn't seem so bad lol.
Thanks for the feedback!