I grabbed two fan controllers from mishimoto and combined them to work off of the same temp gauge. One will turn on at 170 and the other at 200 degrees. I can change the range with the turn of a knob. I took @Mikerocosms idea and stuffed this box pretty tight. This is the finished product of the fans. Had to cut a couple of tabs off the front grille in order for it to fit. Idler pulley delete. I will also remove the fan bracket later. It will clean up the timing cover a little bit. I thought the rear main was leaking due to the whole underside being covered with oil or grease. Truck has been sitting for a while now and the leak is easy to spot. Now its only being covered by spider webs.