Auto Tranny Cooler Questions

[JeffAARy]

My 71 has an auto tranny cooler.  Not sure if it is stock or aftermarket, but I'm doing the Keisler 5-speed upgrade so it has to go.   I usually only deal with manual trannys, so forgive me for asking, but is ATF running from the tranny to the cooler or is coolant running from the cooler to the tranny?  It is plumbed as follows (could be reverse of this also): line 1 goes from tranny to radiator, line 2 goes from radiator to tranny cooler, line 3 goes from tranny cooler to tranny.

When I go to pull the lines out do I need to have the radiator drained to prevent coolant from spilling out, and/or do I have the same issue with tranny fluid (probably a moot point since I need to drain the tranny before yanking it out anyway)?

Thanks in advance.

-Jeff

[71chally416]

Just unhook the lines from the radiator. The tranny fluid runs through the radiator, not the other way around.

Believe it or not, one time when I was a kid I saw this guy pouring ATF into his radiator inlet. I asked him WTF he was doing and he said that was how you filled it. He pointed to the lines at the bottom and said the tranny fluid was heavier than water, so it would sink to the bottom and go to the tranny though those lines. I wish I was making that up. 

[Chryco Psycho]

 

[MEK-Dangerfield]

 OMG!!   

[MrMopar440]

Sometimes you just have to smile and walk away

[71chally416]

A least his water pump was well lubed 

I think his buddies were screwing with him. They told him to put it in there.

[RaptorF229]

Thats almost as bad as the guy who put sand down his intake to port it.