new radiator leak

[grips03]

new coolant leak, in the right (passenger) front. Looks to be seem on lower part of radiator or lower coolant hose. I pressure tested, but could not get issue to occur, so I don't think its the coolant hose, more likely the seem between aluminum and plastic. Running engine now and trying to find it. When replacing the engine, I put a new radiator in there from AB. Now I'm thinking I should have just keep the old one. Radiator is 4 months old.

Any other ideas to try to pinpoint the issue?

 

[grips03]

Just bought a UV kit, hopefully it gets here for next weekend

 

[grips03]

Last night I washed off engine, radiator, frame of truck. Today I went for 5 hour drive. I checked the front frame of the truck and there is coolant inside of it. Thinking its the radiator as everything else is dry.