nope...its done it on both set of new clusters, it will spazz and start bouncing once your around 5k-6k and the be ok, wierdest fucking thing, did it b4 the swap and after
i had gauge overlays but not anymore

 

I don't know if the speed sensor is mechanical or electrical sense, but if it's mechanical and it rotates there are all kinds of things that can make it go nuts at certain speeds because of harmonics/oscillation.. just a thought, probably completely off base though..