Have a new 350 trans. Installing a trans cooler. Which line on the trans in the return line?. Top or bottom?.
Thanks

 

I don't think it matters

 

According to articles in the past you would want fluid to go thru the extra cooler after it passes thru the radiator so you don't cool it down first
then heat it up as it goes thru the radiator then back to the trans.

 

Just bypass the radiator. Shouldn't matter which way the fluid flows. Or put the radiator, external cooler in series. Route the top line from the radiator to the external cooler, then back to the transmission.

 

 

Like you said i was going to put them in series. The top line is what i needed without firing her up & seeing which line pukes.

Thanks