While under the truck poking around I found I can move the drive shaft up down left right with no problem. Looks like that carrier bearing gasket is completely worn out.
it also looks like the drive shaft is to far out on the spline.
Looks like Ill be replaceing that this weekend and then I think I can finally romp on this thing without it exploding.
Ive never had it past 1/4 throttle on the road.