i think its 3/8 ..

 

Thanks. I was going to do it originally, but I wasn't sure if it would be okay, so I just ran it to the new tranny cooler. Glad I left the stock one mounted in there.

 

are you saying that you bypass the rad and ran it straight thru the cooler? if so change it ASAP ! before the cold come running to cool just as worse as running hot.

 

No, my truck has a stock transmission cooer between the radiator and the A/C condensor,and I bypassed it when I put the new one on. Right now it goes: Tranny, Radiator, Aftermarket cooler, Transmission. I'm gonna hook them both up tomorrow so it goes...

-Transmission
-Radiator
-Stock Cooler
-Aftermarket cooler
-Transmission

You think I'll have to add any fluid?

 

I had it go into the rad. then into the stock tranny cooler then into the aftermaket one with the fan that is hooked up directly to it. Just use the stock one with it the more you cool it down the better it can be. Do it all in series.

 

which line did you guys connect it inline with? I guess I'm not 100% sure on the direction of flow. Pictures are worth 1000 words... lol.
Thanks

Kenny

 

the top line cut the metal line in half the top part that goes to the rad out to cooler top line in buttom line out on the trans cooler back to the bottom goes back in that line just taking the line in which is the top cut in half thats the line you use..

 

Its all good and hooked up now. I'll throw pictures up tomorrow or the next day.

 

OK, my stock setup does not go thru the rdiator at all. It is just a big cooler. It is as big as the AC condenser, so I might just put a puller fan behind it..........

 

That's a big A$$ cooler.
Great for rock crawling but might be a bit too much. Do you live in cold area? If you run that in -20 -30 you might (probably will) over cool and that can be worse. Trans fluid can gel if it gets too cold and will starve the tranny. Another thing is if the trans is too cold it won't ever shift into OD.