[Josh Hambright]

I agree with Slimbo,
Use a continuity tester and check the frame and make sure it is not grounded. Also check to make sure that all the connections on the batter and in the electrical system are tight and in good condition, if there is poor contact there is increased resistance which will cause all sorts of problems.

It is my understanding that with the current breakers it is supposed to be very dificult to trip them simply by hitting something, although with the old one it was very easy. Unless you are drawing way more current then you should be, in which case it would be easier to trip the breaker.

So my advice would be to recheck ALL the connections in your electrical system, check the connectors for any signs of wear and tear on the battery, check to make sure nothing is grounded, double check the voltage on the battery, and just make sure you didn't overlook anything.