Transmission Connection to Radiator Leak Problems-1997 Buick LeSabre?

theatrrap

New member
I just replaced my radiator with one from Checkers. I connected it all up and everything seems fine except the transmission lines both leak where they connect. This radiator has a different size connection and came with brass fittings to go from the larger size to the smaller one. I cannot tell which side, or if both sides, of this fitting is/are leaking. I have tried tightening it and while I could put more force into it, I really don't think this is the answer as I have made if fairly tight to my standards (I am the kind of person that can snap off a bolt if I am not careful so...). Any tips on how to make this stop leaking? Anything I should tighten or anything I should use to seal it or anything? Thanks.
 
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