Looking at the pictures of the factory oil cooler setup it uses a sandwich adapter and then the inlet and outlet enter the t-stat housing.
There is no external cooler.
So does this mean they designed this cooler to work by running the fluid through the housing which is being cooled by the engine coolant that just passed though the radiator. Obviously the different coolants do not come in contact but the oil heat is bleeding off into the housing and effectively cooling the oil.
I just picked up a DCSB 4.0 4x4 auto recently and might tow a boat for my father in the near future so I will be adding a trans cooler, have done a number of these in the past no biggie.
Just thrown a curve by the oil cooler setup not have an external finned cooler which is the conventional setup.
I plan to buy a aftermarket sandwich adapter for $35 and then the factory t-stat housing with the correct oil inlets and outlets for $70 and connect them up or run an external finned cooler since I have a stack of them sitting around. This is the same as the stock setup essentially for far less than the 500-800 factory kit.
Am I missing something as to why other are not doing this????
Any info is appreciated.