TH350 return line

[ssls6]

Which two cooler lines on a TH350 is the return line? I want to install an addition cooler and need to tap into the return line so I cool after the radiator cools.

Thanks,
RLK

 

[AkMudr]

Upper is return on both tranny/radiator.

 

[R72K5]

so tops together and bottoms together then ?

 

[AkMudr]

Yup.

 

[R72K5]

what if you go and add a stock late 70s chevy truck aluminum tranny cooler in front of radiator just like factory did and all that,

how do you route lines then with th350 ?

thanks

 

[AkMudr]

Always mount it on the return side whre the temps are highest for maximum cooling effect.