Plastic and Aluminum Radiator

[Sharps40]

The job of the trans cooler is to maintain the oil temperature at a constant 160 or 180, whichever thermostat ya select. You can add one out front but oil might get too cool in winter and sometimes there is a reduction of air flow when ya stack em infront of the radiator. If its a stockish driveline and ya ain't drag racein or towin house trailers up mountains the stock set up is probably fine. But ya never know if its better or worse without a temp gauge anyway and that adds cost and complexity to the job too. I'd say its a toss up, either way should be fine and yer right, if its already plumbed for a separate cooler, its prolly faster/easier. Ye'll still may have to notch the DS lower rad mount to clear the trans cooler fitting since the original v8 rads often did not have an installed trans cooler.