I was driving my ET48 on some grass and doing wheelies and small jumps when I heard a crunch, and then saw that there was no center diff action at all.

When I opened up the diff, I saw this. If you look carefully, you will see that the cross pins holding the spider gears
are all shifted away from the grooves where they belong. The gears are no longer centered between the screw holes. As it stands, the assembly is almost welded together. I can’t get it
apart and my next step is to cut the diff case. The gears don’t look
broken though:

I was running 80k diff oil which is obviously pretty thick but nowhere near locked. What caused the pins to rip out of their grooves and what is the best way to prevent this from happening again?

The day this happened was a “light” day in terms of bashing. No flips, very small jumps, etc.