Man, if it wasn't for bad luck, you'd have none at all! So even if Summit wants to warranty the pump. Are you going to install a 3rd? Personally, I would attempt to run that same pump without that ring.

Because I used a chevy style radiator in my 34, which has the lower hose connection on the right side. I used a 69 mustang water pump. So I'm curious as to how short that "newfangled" pump is. If you wouldn't mind. Could I ask you to grab a couple measurements ??? I'm just curious, so if you can't no problem! Looks like you've got a bunch of other things hanging over you! And YES! I am so glad I didn't use one of those pumps!