Upgrading trans heat exchanger to an oil cooler

[Hammerhead]

(10-04-2017 )dhirocz Wrote:  Anybody happen to know the thread size coming out of the case for the oil cooler? I'm trying to build my own oil cooler setup, and I think I have it all figured out...

What I'm planning on doing is running to a remote mounted for the filter, then out to a thermostat, then finally to the cooler. Cooler is a heavier duty B&M, something I can mount up front that can take the occasional rock from the road. It's big enough for decent cooling capacity (14400 btu) during longer harder pulls, and the thermostat will prevent overcooling in the next few months. I have a gauge to monitor the trans temp/system as well. I want to plumb it up with JIC fittings and some top notch high temp oil cooler hose.

Every time I remember it's after I already put the truck on the road...

I wouldn't do the thermostat unless you are putting in a "closed return".
The pump in a tranny is just a simple gear pump designed to have NO resistance, therefore it has NO pressure relief that I'm aware of. Creating pressure with a closed t-stat could be very bad.

The first rule of home engineering: Keep It Stupid Simple

I would go the other way, put an electrical stat switch that turns an electric fan on to cool instead, that's what I intend to do when I do mine.