mounted mine on the underside of the passenger side chassis leg, made up a T shape out of ally angle, bolted on and gobbed on underseal just incase, then bolted the cooler to the underside of that T shape and it now sits right behind the bumper vent. As I have a 16 row I needed 90 deg bends coming off the bottom of the cooler to keep them up out the way, but if you have a 13 row that will be fine Works too well, Ive had to cover the front face of the cooler and leave the back to work as a heat sink and now its spot on