Truck was fixed...something is still broked or not happy inside the axle...more investigating tonight.
On a side note, I got an MSD 6AL box and coil (thanks Adam!) and I was wondering how I should mount the box. Should I put it in the cab or under the hood? Rubber mounted? Will it stand up to my beatings? I want it for the rev limiter....going for that 1%er style you know...