Transmission cooler... needed?

[80SeriesNomads]

To answer my question about If it helps anyone in the future, I ended up bypassing radiator with the transmission line and the truck has been working great in both hot and cold temps. I replaced the soft line that went from the transmission to the radiator and the line that went from the radiator to the transmission cooler and used one piece of hose to connect the transmission directly to the radiator cooler. I think the line was 5/8 in, but don't quite me on that.

Is it still running fine?

 

[Marco Lau]

I am runnning a Derale tranny cooler made for a diesel rig. It is a little more compact than the factory unit, but it cools a bit faster and is thicker as well. And yes, the secondary cooler under the radiator is important in stabilizing the tranny fluid.

 

[efjayatee]

Installed this trans cooler a while back. Also Derale