So if you follow that thinking, the transmission would pump the fluid into the low mounted cooler because it is downhill.
BUT!
It's then uphill back to the transmission.
Regardless, the transmission is more than capable of pumping the fluid. Anyone that has done the DIY transmission flush knows that the fluid comes out very quickly- even with the motor at idle.
And to update this install: I've since completely bypassed the factory cooler in the radiator and run all the fluid through the aux cooler. I run it this way year round. 100 degree weather in the summer to sub-zero weather in the winter.
BUT!
It's then uphill back to the transmission.
Regardless, the transmission is more than capable of pumping the fluid. Anyone that has done the DIY transmission flush knows that the fluid comes out very quickly- even with the motor at idle.
And to update this install: I've since completely bypassed the factory cooler in the radiator and run all the fluid through the aux cooler. I run it this way year round. 100 degree weather in the summer to sub-zero weather in the winter.