Originally Posted by
BlueGlowBoy
I was thinking SunGear side, as all the pressure is coming from the pin, and if the pin is still fully supported, then it doesn't matter how much bigger THAT shim is, and on the diff housing side, the larger shim would mean that there should be less opportunity for wobble...
Here is an EXTREMELY crude drawing of what I mean:

Very cool - thanks

Sungear side it is. I remember noticing the dent the pin made on the existing washer.