Just got my center ball diff and getting ready to install it but I don't see any instructions.

I figured out that the blue countersunk washers are for centering the metal discs but where does the single small silver metal washer go?

I test assembled the parts and it seems like the spur sticks out a bit further than before... Is this correct and I just need to move the pinion out a bit?

I'm using the original bronze pieces to tighten down against the diff washers.