I just replaced the radiator in my '95 today. The new radiator I put on has adapter bushings for the transmission and oil cooler lines. The transmission cooler needed the adapter bushings but the oil cooler lines do not. When I undid the bushings on the oil cooler side I noticed that the bushings had an o ring on the mating surface to the radiator cooler. The oil cooler line had been leaking at the radiator so I thought maybe it was missing the O-ring. I put this o-ring on my cooler hose and put it up to the radiator. The O-ring must have been too big and it fell down inside the Oil cooler. Do you think that could cause any problems? My option would be to leave it or replace a brand new radiator. Is there a way to flush the cooler?