I will be picking up my E0 tomorrow and paying a huge bill. I had the same thing happen -- blew the differential. Thought (hoped) it was the clutch which called for 10 hours of labor -- $600. Clutch kit was $520. Got the clutch apart and it was worn but ok -- had to replace tranny - $1814. No additional labor but bill was still $3200 since I went ahead and did the clutch anyway. Have them do the rear main seal ($20) while they're in there. May as well get the oil changed too. Good luck.
Black E0 #460
