4L60 fitting size?

[low91]

I'm buying the fitting to use steel braided hose for my transmission cooler lines but I can't find what sizes are used. anyone know? also is -6an large enough for the hose size?

[r6z4o6]

Check it.

TCI says 1/4 pipe thread.

And if you forget which way the fluid is flowing on any trans.....looky!!
TCI - TECHNICAL INFORMATION: Cooler Fittings

[Vince_B]

Take a look at these. Vince

4L60 & 4L80 Trans. Fittings -6 AN

[low91]

Check it.

TCI says 1/4 pipe thread.

And if you forget which way the fluid is flowing on any trans.....looky!!
TCI - TECHNICAL INFORMATION: Cooler Fittings

Yeah 1/4 sounds about right, I only ask beacause the truck is about half the country away right now and i just wanted to have the parts waiting for me when i get home.

[Vince_B]

Be careful if using 1/4 pipe threads. They are not an exact match to the threads in the trans. I have seen when they are overtightened that you run the risk of cracking the case. I have used them but if you do, do not be a gorilla when tightening them up. I use some red anaerobic sealer on the threads and just snug them up to the point where I am comfortable with them. Never go to the point to where they stop turning. That is when bad things happen. I would take a look at the link I provided. Those seem to be an easy solution and still use the factory fittings in the case. Just a thought. Vince