Hey there Ryan, thanks for stopping in.
A good day in the garage today. I got the new radiator in and finally got the fan shroud issue worked out. And it only took me three months.
It seems that my old radiator going out last weekend turned out to be a good thing. The new radiator is much accepting to my old plan of using the 63-66 radiator shroud. So the new radiator is in as well as the well fitting adapted 63-66 shroud.
New rad installed -
To get decent clearance to the water pump pulley and also to be able install or remove the fan, I had to trim one and a half inches from the fan opening -
Then set it in on the radiator and side baffles to mock up and get a final location. The fan in the pic came off of the 258 straight 6 that was in my 1990 Jeep Wrangler. It is the fan I settled on. It is 17 1/4 inches across and fits in the opening with an inch gap to the shroud opening -