I am personally not a fan of the 3.4 either. I think what I am going to do since my truck is already on tons and 3 linked is swap the motor and then find a 2wd 22re cab to swap on, no ref and cheaper insurance is a win win in my book.
Till CHP stops you and see's that your frame vin doesnt match your cab vin and it opens a whole giant can of worms.