A/T Cooling 4L60E

[Groyd]

Here's the situation. I have a 4l60E and need the A/T lines that run to the radiator. The radiator is out of a 67' Mustang. I've been having trouble figuring out the thread size on the radiator. I found a bolt that fit it and took it to Lowe's and it fit in the 3/8-24 slot. I bought a universal kit from inlinetube and its so universal that it doesn't work on anything. ha. It has 5/16" tubing(to small for the tranny and too large for the radiator). The lines from the tranny were 3/8" with 1/4" threads.

So here's the question(s):
1. How do I run the lines? Braided hose, steel lines and bend them?

2.What fittings would work best?(This is my main question)

3. Would I be better off just running the lines from the transmission to an external transmission cooler? and if so, would a heat sink cooler work, because I don't have room up front for another tube/fin type cooler? Or can you mount a tube/fin on the frame like the heat sink coolers?

[Clyde65]

the 4l60e has -6 fittings for cooling. 3/8's tubing should be fine, that is basically what -6 is anyway.

I think the stock rad should need 1/2-20 fittings, summit would probably have what you need.

[Groyd]

Thanks for the reply. I ended up calling Summit's help line and I got talked into a small stacked plate tranny cooler that should fit above my a/c condenser. Thanks for answering my question though.

-Matt

[Clyde65]

I see alot of guys using the long vaned style cooler and then run it through the rad cooler too, always better to over kill cool if your in a hot climate. Good luck Matt!

[clinebarger]

For the Ford radiator you need two 1/8" NPT male to 1/2" x 20 female SAE flare fitting. http://store.fedhillusa.com/ad5br.aspx

For the trans you need two 1/4" NPSM male to 1/2" x 20 female SAE flare fitting, This factory equipment on TH350,TH400,700R4, & early 2 peice 4L60Es with 5/16" cooler lines. Wreaking yard or spare trans laying around are the best solutions, The Aftermarket thinks the threads in the trans are 1/4" NPT, So if you buy some make SURE they are 1/4" NPSM.

[Groyd]

Originally Posted by clinebarger

For the Ford radiator you need two 1/8" NPT male to 1/2" x 20 female SAE flare fitting. http://store.fedhillusa.com/ad5br.aspx

For the trans you need two 1/4" NPSM male to 1/2" x 20 female SAE flare fitting, This factory equipment on TH350,TH400,700R4, & early 2 peice 4L60Es with 5/16" cooler lines. Wreaking yard or spare trans laying around are the best solutions, The Aftermarket thinks the threads in the trans are 1/4" NPT, So if you buy some make SURE they are 1/4" NPSM.

Thank you for the very specific answer. That's why I ask questions on this board. I always know that there is someone out there who has the right info. I know a lot of other people have used this radiator as well. So this should some others too.

Thanks,
Matt
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[Clyde65]

Originally Posted by clinebarger

for the ford radiator you need two 1/8" npt male to 1/2" x 20 female sae flare fitting. http://store.fedhillusa.com/ad5br.aspx

for the trans you need two 1/4" npsm male to 1/2" x 20 female sae flare fitting, this factory equipment on th350,th400,700r4, & early 2 peice 4l60es with 5/16" cooler lines. Wreaking yard or spare trans laying around are the best solutions, the aftermarket thinks the threads in the trans are 1/4" npt, so if you buy some make sure they are 1/4" npsm.

show off!

[clinebarger]

Originally Posted by Clyde65

show off!

I was just helping you out on this one John

[texastrendz]

Originally Posted by clinebarger

I was just helping you out on this one John

sorry to hi jack, i have a 4l60e with no lines out of the trans at all. What is the best solution to connect the cooler to the facotry trans fittings? thanks daniel

[clinebarger]

Originally Posted by texastrendz

sorry to hi jack, i have a 4l60e with no lines out of the trans at all. What is the best solution to connect the cooler to the facotry trans fittings? thanks daniel

Are you asking how to connect the factory 5/16' cooler lines to the transmission?

[Clyde65]

I know you were Chris, thanks man!

[texastrendz]

Originally Posted by clinebarger

Are you asking how to connect the factory 5/16' cooler lines to the transmission?

I bought a motor/trans with no lines attactched to the trans. Looks like a bubble style flare fitting. Can i convert these fitting to a A/N style fitting to simplify the plumbing. Any help would be great. Thanks Daniel

[clinebarger]

Originally Posted by texastrendz

I bought a motor/trans with no lines attactched to the trans. Looks like a bubble style flare fitting. Can i convert these fitting to a A/N style fitting to simplify the plumbing. Any help would be great. Thanks Daniel

The fittings on your 4L60E are "quick disconnect" O-ring fittings, They are a bad design.

Replace them with #6 AN male x 1/4" NPSM male fittings http://www.sweetperformance.com/prod...&productId=480

[texastrendz]

Thanks man, that is exactly what i was looking for. That needs to posted somewhere easy to find. This makes more since to me with the the ease of use of AN fittings.

[fast&low]

I know this post is old but will the fittings out of a 1988 700r4 fit the 4l60e?

[clinebarger]

If the 4L60E is older than '08. The 700R4 fittings wil work

[fast&low]

Thank you
I'm a little worried the top fitting went on well and tightened up pretty well but the lower went on well but does not stop turning so I put the original back on & no problem?

[clinebarger]

Originally Posted by fast&low

Thank you
I'm a little worried the top fitting went on well and tightened up pretty well but the lower went on well but does not stop turning so I put the original back on & no problem?

Is the fitting damaged (Threads)? What year is your 4L60E?

[fast&low]

The fittings have no damage to them whatsoever and the transmission I couldn't tell you because I have the transmission already installed so it's hard to see inside?
Don't know the year of the transmission if you could tell me what numbers to look for I'll go out and look.
It's actually a 4l65e converted into a 4l60e 2WD.

[fast&low]

Sorry 60e converted into a 65e 2WD

[clinebarger]

I am going to guess the Thread Locker GM put on the Original Steel fittings is giving you hell, A lot of it stays in the Case Threads.

The Brass Fitting have never been in that Case before...The Threads are not a Perfect match....New ones may be worse!! Manufacturing variances & Tooling play a huge role here.

The fittings out of the 700 need to seat to the Case, Done it hundreds of times & some get real tight before they seat because you are re-activating the thread locker from the heat of the Brass threads reforming to your case.

[fast&low]

Yeah I understand what your saying & I don't know the year of my Trans but I have been doing a lot of googling lol and something tells me I shouldn't have used my flare fittings & now I probably damage to the threads on my transmission?
And I hope not because my transmission is not a junkyard pull its a upgraded Trans I bought from Just Chevy Trucks to handle the lq9 with no worries.
The original fittings went back on with no problems I just pray to God they don't leak.
Thank you for your time & God bless
Miguel Stevens

[clinebarger]

You can still use the 700 fittings, But they will be pretty tight before seating!
However I do not want you to twist a fitting off in the Case, Explaining "Feel" over the internet doesn't work to good.

[fast&low]

No you don't understand the 700 fitting that I tried installing on the lower side got snug then very loose & I say snug because I wasn't hard on it & what I mean by loose it doesn't stop turning.
The good thing is the the OE snap on fitting went back on good & snugged up I'm just afraid to tighten it to hard.
Tomorrow morning I'll go back out and put some liquid Teflon and try tightening it up.

[fast&low]

clinebarger can you tell me which side is the high-pressure side the lower or the upper side?