Transmission fluid leaking from lower radiator

[Firstjeepbuild]

I have a drip coming from the lower transmission line out of the lower radiator. It looks like it may be coming out of the fitting that screws into the radiator. I will take the fitting off and see if there is a gasket there I can replace. If that works great. If I need to replace the radiator is it worth it getting a 3 row one versus replacing it with a stock radiator?

 

[CharlesHS]

Don’t waste your money purchasing a 3 row radiator, the OEM radiators are better than the aftermarket ones.
Good luck trying to locate a Mopar OEM automatic radiator; they are becoming Unicorns.
There are a couple forum members that have had good luck with a certain aftermarket radiator; I do not remember who that manufacturer is….
I am waiting for those forum members to chime in.

 

[JMT]

Denso is the brand most are going with.

CSF is less often turned too.

 

[LONGJP2]

I have a drip coming from the lower transmission line out of the lower radiator. It looks like it may be coming out of the fitting that screws into the radiator. I will take the fitting off and see if there is a gasket there I can replace. If that works great. If I need to replace the radiator is it worth it getting a 3 row one versus replacing it with a stock radiator?

It's probably just the fitting or the line itself.
If it's the radiator, then it would probably be leaking coolant.

 

[CharlesHS]

I have a drip coming from the lower transmission line out of the lower radiator. It looks like it may be coming out of the fitting that screws into the radiator. I will take the fitting off and see if there is a gasket there I can replace. If that works great. If I need to replace the radiator is it worth it getting a 3 row one versus replacing it with a stock radiator?

Before removing the fitting thoroughly wipe the oil area around the bung the fitting screws into and inspect with a bright light looking for crack lines. Hopefully there are no cracks and the leak is coming from around the fitting barb. Once you remove the fitting; inspect the inside of the bung looking for nicks, burrs or paths for leakage.

 

[Firstjeepbuild]

I cleaned off tranny fluid to inspect it, while I was trying to tighten up the hose clamp I found it did not totally tighten down. I put on a new hose clamp and to still leaked a little. The bard that the hose goes onto is about 1 1/4 inch long. My friend, a retired transmission mechanic told me sometimes you need 2 clamps on the long barbs that worked no more leak.

 

[CharlesHS]

The hose could be hard (due to age) not allowing the hose to fit snugly onto the barb or the hose may have hairline cracks in the hard rubber hose causing transmission fluid seepage.

 

[Firstjeepbuild]

Good point the hose is old. The leak is gone but replacing the hose is easy. I will replace the hose.

 

[hear]

Good point the hose is old. The leak is gone but replacing the hose is easy. I will replace the hose.

Isn't the soft line swaged onto the hard line that runs to the trans? You may find it's not all that easy.

 

[Firstjeepbuild]

The hose that goes into the transmission is not swaged I did not look at the other side to see if it was swaged but i will.

 

[ChasUGC]

The fitting that goes into the transmission cooler may need some Teflon Tape.