I destroyed my diff...E30 M30

[george graves]

Thought some of you guys might find this funny....

It's the aftermath of my differential:

The output shaft:


Looking INTO the diff:


The snapped shaft:


(DISCLAIMER: I'm running a stock m30b35. I have to assume that the diff was defective from the factory and the added TQ was the last straw. I do not suggest that a m30 motor will destroy your diff. Or even that an M30 is a "diff destroyer" - if that was the case, turbo guys would be eating diffs for breakfast)




Cliff notes:

- e30 m30 powered car
- 230k on stock LSD 3.73
- installed the m30 10k before this happened.

It was the ONLY time a BMW has left me stranded - EVER.

Enjoy...

[TwoJ's]

Well, at least it didn't lock up while you were apexing somewhere.

[AndrewBird]

Was there any noise before this happened? It did it just go without warning?

[george graves]

I was on a tiny hill at a stop light with 2-3 cars in front of me. I let the clutch out slowly, and heard a huge "SNAP". I thought I had snapped my DS. The car would only roll backwards - it would not BUDGE going forward.

[Firestorm]

I have a feeling this will happen to me once i throw some MT's on and hit the drags. I have plans to fit up a 9" IRS rear end when it gets destroyed though. Shouldnt have any troubles with that...