Transmission cooler

G

garr

NAXJA Forum User
Location
Nassau County NY
Climbing hills at highway speed in my fully loaded xj into a strong headwind last week had me dropping the aw4 into third to keep up, To be on the safe side, Before I repeat the above I think I will install a tranny cooler.

What aftermarket transmission cooler do you guys Recommend?
Thanks in advance!
 
I purchased a small Hayden unit I am very pleased with. I bought it at GI Joe's before they became Joe's and then went out of business or something. Mounts in front of radiator.
 
like everyone tells me do the research i have asked this question and i have done research and you will find what you are looking for on this website. No matter what you are looking for it has most likely been brought up on here before lol.

But also people run the f250 v10 tranny cooler, its a huge cooler but if you live in a hotter climate and like your a/c on during climbing. Also get yourselft a b&m temp guage first so you can see what your tranny temp is. Your temp should be anywhere from like 100 to 150 anything above 160 is just over normal if i remember the diagram correctly.
 
FYI the built-in radiator cooler are GREAT cooler even its rather small. I'd recommend you to hook the cooler in series with the radiator cooler.

the advantages of doing this that you can have the trans to warm up faster as the radiator can warm up the fluid. second, trans cooler in the radiator can transfer good amount of heat. think about it this way, you try to cool yourself in water, which work very well but not very much in air alone.
 
windle27 said:
i picked one up from napa. it was cheap and does the job.

very pleased :wierd:
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yep. i went that route and i love it. get the biggest one you can fit.

95' heep said:
FYI the built-in radiator cooler are GREAT cooler even its rather small. I'd recommend you to hook the cooler in series with the radiator cooler.

the advantages of doing this that you can have the trans to warm up faster as the radiator can warm up the fluid. second, trans cooler in the radiator can transfer good amount of heat. think about it this way, you try to cool yourself in water, which work very well but not very much in air alone.
Click to expand...

leave the trans in line with the rad if you live in a cold climate. but if your like me in someplace warm (like phoenix) delete the trans port in the rad. its like trying to cool off on a warm day by jumping in a sauna. i have a b&m trans temp Gage on the line going to the cooler, bypassed rad, one of the largest coolers i could fit with a taurus fan, and back to the trans. after all this the only time i overheat is when pulling a trailer up some steep hills and when running full throttle in some sand.
 
sorry for the hi-jack. quick question

I live in VA...pretty hot climate during the summer. especially for a tranny pushing 38s through mountains. Im thinking that im going to bypass my radiator, but im not sure what the best way to do this is. I.E. how am i supposed to plug that part of the radiator.

thanks
 
Ford explorer and F- series pickupa are good junkyard candidates. Also check for Liberty coolers. I ran the B&M 70264 and like it(inline with the rad. cooler) As stated above, the plate type coolers are more efficent then the tube/fin style. They also have lower fluid pressure drop across the ports.

As for plugging the unused radiator ports if you bypass, get a couple brass plugs from you local hardware store(It's not pipe thread, so don't try to use pipe plugs) Usually find that stuff in the plumbing dept.
 
you dont have to plug the trans port on the rad. it is sealed off completely from the coolant. you can take compressed air and blow some of the residual trans fluid out of the system in the rad to help keep the fluid from spilling later.

i just took the supply line to the cooler and then the return line from the cooler to the trans. i picked up about 5 feet of hose from an auto parts place (make sure its rated for trans fluid) and i have plenty left over
 
i picked up a trans cooler from the junkyard out of a fullsize ford van. it was the biggest one i could find out there.
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The B&M 70264 has a Orfice that bypasses the cooler when the oil is thicker and (to warm up) then when it thins it is wide open......
 
redneck23ms said:
i picked up a trans cooler from the junkyard out of a fullsize ford van. it was the biggest one i could find out there.
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your cooler should be mounted on the right side of the radiator in front of the clutch fan....that way you always have air flow being pulled past it.
 
i know that...but it would be best for it to be infront of the Clutch fan because that is always pulling air....Trans temps are important. do you know the dimensions of that cooler? L ,H thickeness?
 
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