Washers worked and spaced the water pump pulley out just enough to get the t-stat housing in there. I would've put the old one back in except I want the thermostat in there for the fan controller and I couldn't break the plug free in the old guy. Alignment looks ok between the water pump and the dampener. Looks to be off on the alternator. My guess is that it always was off there when I put that new one in a couple years ago. I'll just have to pay attention to it and see how the wear and tear goes. I forgot to measure the width of the washers I stuck in there but I'd say they're in the 0.060" - 0.080" neighborhood. Here's a couple snapshots of the pulley alignment.