Mopar clutch posi? Boom! Not impressed.

So, here's what happened after 5 passes on my new clutch Sure Grip.



I haven't pulled the hog head apart yet, but I believe these are most of the teeth off of the diff's side gears.

I let go of the brake off of the line, there was a loud bang, and then some grinding sounds. The trunk lid popped open! I was surprised/relieved to not find a puddle of fluid under the car when I hopped out. The car would actually still roll as long as I didn't give it any gas, but wouldn't climb the ramps on to the trailer.

I've got an 8" DOT tire and about 420 hp at the motor. This clutch unit went in to replace the cone posi that lasted in the same car for 50-75 passes last year.

I thought I had shredded the pinion gear until I got it apart. Of course, the ring and pinion is now junk from a couple of spots where the side gear teeth went through and messed it up. If I have it out again, I'm putting a drain bung in the bottom of my 8.75..

These clutch posis are on national backorder right now. I wonder if they're having a hard time finding the Chinese crap side gears...

It looks like Dr DIff sells side gears on Ebay that are supposedly stronger than stock? Anyone have any experience with those?