see alot of you guys running 6.0 trans anyone running the derale 20,550 gvwr trans cooler how doe it compare to the 6.0

 

I don't have an answer but here is a bump until someone with more knowledge comes along

 

20,550 is a smaller cooler than the stock original 28,000 gvw cooler.
I would use a bigger one if you intend to replace the stock cooler.
I recently replaced my stock cooler with a Tru-Cool 40,000 gvw, and added a OTW radiator, and my temps went down about 30-40 degrees.
If you are adding inline with the stock one, it should be just fine.

 

Mishimoto makes one too not sure of the specs on it but I hear their intercoolers are pretty good for our trucks

 

One thing I dislike about most aftermarket coolers, is that it is a single pass cooler. This causes a lot of flow restriction in my opinion.
Stock 6liter is a stacked plate design (like the stock psd cooler) and it has minimal flow restrictions, and its a very durable cooler. The thin aluminum fins on most aftermarket coolers, would only last me about a week of woods use. If you have a tar-baby, then thats fine, but on a work truck id be a little concerned.

 

I agree, The reason I used a Tru-Cool is that it's a stacked plate cooler, not a "tube and fin" single pass. I read somewhere that Tru-Cool makes the 6.0 cooler for Ford.
I can tell you the Tru-Cool I have other than the mounting tabs and being bigger, IS Identical in every way to my stock Ford cooler.