when you put the radiator into the rad support, do your mounting holes line up? do you have the isolator/bushings, that mount between the rad and the support?if this rad lines the holes up (all rads aren't the same, even though they are the same size. you need a 89 v-6 dakota radiator for an automatic) then remove it, and place the fans inside the opening, and line up the holes for it.

i don't see the wiring harness to plug in the fans, coming from the computer/relays. the "1 inch holes" were added by someone in the past, to access a hidden nut, or a tool/nut dropped into the hollow void, of the support core.