That’s full bump. The pivot doesn’t actually have to move much for 6” of travel. Also, it can’t flatten out. The mounting hardware acts like a limit strap/bump stop at a point.Where is that rear end in it's travel as shown? Looks a little odd. Links are pointed up, but 'spinner' doesn't quite correspond. At ride heigh the links should be level and spinner at 90 - which under bump would 'flatten' out the spinner? Or is all this just mock up?
My friends made a watts for a truck that does pivot as much as you’re taking about, so they put the pivot on top of the axle.
David


