I plugged them with 3/8 pipe end fittings, not ideal since the fittings on the radiator are for a flared compression fitting, but it will work since I won't be using the trans cooler.Machinist, did you plug the trans cooler fittings on the radiator? How was the fit?
I'm not super impressed with this radiator. The threads on the studs for the bottom mounts didn't match the stock bolts, or the ones I got from the hardware store and I ended up snapping one of welds on one of the studs. The front mounting bracket was also damaged slightly during shipping so it took a little gentle "persuading" with a rubber mallet to get it lined up. Overall the fit was ok though.
Don't forget to get new bolts for the fan shroud since the aluminum radiator does not have captured nuts like the original did.