wish-bone

I am building a 2-link for a 98 chevy full size and i was going to put a wish-bone on. how far back does the wish bone need to mounted?

TECHNICALLY IF YOU PUT A WISHBONE ON IT ITS NOT REALLY A TWO LINK. I WOULD PUT THE MOUNTS AS CLOSE AS POSSIBLE TO THE MOUNTING POINT OF YOUR LOWER BARS SO THE REAR END WILL PIVOT GOOD.