My Libby has the normal drivers side tank leak. I bought a replacement and it has an internal transmission cooler. Mine has an external cooler. Not a big deal, I figured i would just leave the plugs in the radiator's cooler and forget about it. But when I got the OE one out I found out that the replacement radiator does not have the transmission cooler mounts under the condenser mounts. What are my options? Has anyone else ran into this problem? I thought about zip tieing the trans cooler to the bottom of the condenser mounts.

You got the wrong radiator,take it back and get a OEM radiator from the dealership,it will be correct.

Use the in rad cooler.
Better tranny cooling than the crappy stand alone cooler.
Or plumb in the stand alone inline with the in rad cooler.
Especially usefull if you do allot of off roading as the tranny will never light up the tranny temp light.
As far as the mount, I just zap strapped the stand alone cooler up higher so it gets better, more direct airflow than where it OEM mounted.