Well broke my first part. Think I took out the rear diff. Got a clicking noise but only when the rear wheels are on the ground. Must have done it yesterday when I forgot to unlock the diffs and did a few speed jumps.
Got to wire a led to the top to remind me. So much for bashing tonight as soon as I heard it started tearing the rear apart thought it was bearings at first so I pulled it all off cleaned and lubed everything.