Ernie12 said:
I checked and I do have the Tranny cooler. Its small but its there.
Just to be certain, if your truck is like mine, and it most likely is, there will be a "smaller" cooler that is mounted vertically in front of the radiator on the driver's side.
That is a cooler for the power steering fluid.
My factory aux transmission cooler can be seen mounted right in the lower center in front of the radiator and it is horizontally mounted, is larger than the power steering cooler, and measures right at 12" from side to side.
Others have assumed the smaller cooler was for engine oil or the transmission, but that is not the case.
If you have a factory engine oil cooler, the lines are routed into fittings on the driver's side rear of the radiator.
The regular transmission cooling lines run into fittings on the rear of the passenger side of the radiator.
With the aux transmission cooler, the fluid is routed into the regular cooler inside the radiator, then the fluid passes through a set of lines to the aux cooler in front of the radiator, then the fluid is returned to the transmission.
Hope this helps identify your set up.
Of course, this all is assuming the second gen trucks are similar to the first gen trucks.
And you know where assuming can get us.