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Tranny cooler lines

whylee

Well-Known Member
Messages
98
Location
Reno NV
Im installing a tranny cooler on my 08 Alpha. Looking at the OEM lines up by the cooler just at the front of the motor. One line has a tag that has in on it the other has out on it. Im wondering which one is the input to the cooler from the tranny.
 

digglesworth

Well-Known Member
Messages
1,789
Location
illinois
Not sure if it's covered in the link but the line from the trans should go to the bottom of the cooler. The line from the top of the cooler will be the return line to the trans. If your mounting it with the hose barbs pointed sideways (plates vertical). If they're both on the bottom (plates horizontal), it shouldn't matter.
 

alrock

El Diablo
Staff member
Messages
10,677
Location
Scottsdale
I think we figured out in/out by briefly starting the truck and seeing which one spit out fluid.
 

whylee

Well-Known Member
Messages
98
Location
Reno NV
I think we figured out in/out by briefly starting the truck and seeing which one spit out fluid.

I can not start mine due to installing the supercharger, electric fans and tranny cooler. I have the thing pretty striped down. Just trying to find out what line is the input to the OEM cooler.
 

rsc

Well-Known Member
Messages
1,087
Location
Tulsa
I think I remember it being the one on the drivers side that pumps fluid into the radiator/cooler.
 
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