Diff noise?

[Bubble_Drift]

Well..it finally happened.

R&p is gone.

It had been wining for over a year now.
But nothing else.

I was at a driftday sunday and had been drifting for 4 hours.
It had been raining and the track was quite wet.
Everything is going fine.
We had a 1 hour break and then I went out on the track again.

Did a couple of runs...still nothing strange going on.

Then, next lap, take the first turn, clutchkick...and...crack!...just like that....all of a sudden.

This is what it looks like:



Pinion is missing a lot of teeth. The ring has a lot of broke teeth too. Notice how the are all broken off on one side only.

Bad alligment? Or just old and worn?

What do you guys think of it.

I'm thinking about a 4.77 r&p with a solid spacer next.
But I want to be sure that it's reliable! Any other suggestions/alternatives?

PS. Engine is stock 120hp with a 2 year old stock replacement clutch. Clutch is holding up fine.