So I had pressed the old pinion bering off the 4:11 pinion to re-use and measure the shim. However, I wrecked the shim so I ordered a new Dana 44 pinion shim set. I painted the old bearing red so I could keep it for mock up. I reamed it out just enough so I could slide it on and off the pinion for set up.
Worked like a charm, golden, right?