I had to remove the huge 7 blade 18" wide oddball fan blade the PO installed so I could finally use a fan shroud again so I also opted to upgrade the spacer to a thermal clutch fan while I was at it. Should free up a few more ponies on the highway along wiht the flow cool disc I added to the back of the waterpump blades when I tore it apart. Still a few more finishing details left but they can wait until the engine gets dropped back into the car a few weeks from now and I get to hook everything back up and see if she fires up or not.