it seems that the recommended way to install the tranny cooler here on jk-forum is inline after the factory cooler. i had a shop install my cooler and they installed it before the factory cooler. is this a problem with installing it this way?

thanks for the help

cheers

 

It is not a problem, but the recommended way is to do it after the factory cooler. I do not know the exact technical reasoning, but I assume that it has to do with the efficiency of the cooling.

 

No gear head here. But isn't the factory tranny cooler part of the radiator. So, radiator fluid temp would influence cooling capabilities of the tranny cooler. SO, Passing the tranny fluid through the radiator first would cool down to rad fluid temp. Then through external cooler to cool down even further. Does this sound Kosher?

 

i don;t know which way is correct. i just know they tapped into the "lower" line and not the "upper" line that all the write-ups here recommend doing. anyone else with technical advise see this as a problem?

 

The overall recommendation is to install the aftermarket cooler on the return oil line from the condenser, to the transmission. Essentially your condenser cools down the tranny oil, then it gets cooled again by your aftermarket cooler.
I took temp readings with a laser thermometer at the trans pan and cooler (I have a Derale Finned cooler) Outside air 100 degs, Trans pan 178 degs, cooler 148 degs.

 

The OEM cooler isn't part of the radiator. It's in front of the radiator; the lower part of the A/C condenser.

Installing the aux cooler after the OEM cooler is more efficient because the fluid is exposed to the coolest fresh air flow just before it returns to the transmission.