Rear drive shaft problem

[DaveTheRave]

Hi All

I took my cat out for a few runs over the park today. It was great fun hitting a few nice short grass jumps.

Unfortunately I managed to loose the pin out of my rear drive shaft, where it engages with the diff output (new versions, no holes)

I had noticed it had shifted earlier whilst cleaning, and I nudged it back to centre with a pair of pliers.

Is this a common problem? Is there anything I can do to avoid it happening again? Or anything I can do If I notice the pin's slipped again?

I guess I just have to spend £21 on new rear drive shafts, U3341.. I've ended up spending quite a bit on the cat lately, so any tips on how to avoid this problem would be much appreciated.

Cheers