I got the taco rear in today. It bolted right in. The only thing I had to do was flip the hard brake line from side to side.
The engine will handle 14lbs of boost for a long time. I built it to handle 20lbs. The bottom end has forged pistons, moly rings, eagle rods, heavy duty bearings and it's balanced and blue printed. The mls head gasket keeps it all sealed up. The motor had only 103,000 miles on it when I rebuilt it. The head has no cracks and these motors are famous for it. MY friend turbo Luke's truck had over 200,000 miles on it. He threw 12-16lbs of boost at it for over 3 years with no issues. It held up fine 'til the boost controller line melted and the turbo spiked to 30lbs and popped the head gasket. It's in the machine shop getting a full rebuild right now.
Next weekend i'm gonna put the 4.88's in the rear end.