I just rebuilt the pump So I just need to get the snapring for it?
I was looking at some diagrams and there is an arm that looks called a stay that goes over the front of the pump do I need that
My 4.3 is missing the stay as well, and no issues so far. The design looks like it's intended to prevent the raw water pump from rotating, but it's not going to prevent the issue you had. Seems like your pressed-on bearing failed and/or you're missing a retaining clip.
I personally would like to add the stay to my motor, but I find it ridiculous that a simple piece of bent metal would cost over $160.
I don't know of a rebuild for a bearing surface, probably going to need another pulley