I got a leak ever since I replaced my radiator the transmission cooler line been leaking and I know why because the trans line going in the radiator isn’t secure enough or tight enough there’s still some wiggle room and I wanna know what I could buy to make it as tight as possible so no fluid will leak out the side of the trans line

 

I would think about getting another trans cooler line. Maybe there is an issue with the threads on yours. However, if it is still loose, then you need a better quality radiator. You don't want to run the tranny dry.

 

I know that’s my next step if this doesn’t work I got some JB Weld on it right now to see if that fixed the problem

 

been there and i know how frustrating these can be. Anyways you need to change entire rad as i could never found the connector , some AN connector i bought but never fit in the radiator. I didn't buy a new rad, only bought a trans cooler ( Hayden) and ended with a separate cooling for trans oil. its easy and you can do it by yourself. Just make sure to put the cooler in front of rad and close to condenser.