I was drving along the freeway when I started to hear a light ticking sound. 10 seconds later, it got very loud. I got off the freeway and it cut out at the end of the ramp/ I restarted it and managed to drve it another 1/2 mile. At this point, it was going "knack knank knack (first k is not silent)." Then a puff of smoke and it was dead.

I hope that swapping a 3800 is as easy as working on the engine its self.