Driving off-road can send a lot of debris and trash through the radiator of a truck. Get a leak in the middle of the desert and you could be one cooked wheeler by the time you get back home--if you make it. For years dirt racers have been mounting the radiator in the rear of their trucks to let it get a flow of cool air without being so vulnerable. ORU installed this mattress-sized Griffin radiator in the back of the Sub and tacked on a Flex-a-lite twin-fan unit to make sure air gets sucked through the aluminum cores even at idle and through the slow sections. Underneath the radiator is a 70-gallon fuel cell that Fuel Safe made custom to our specifications. The cell sits low in the chassis and gives us enough room to mount the two 37-inch spares in the Pyrotect tie-downs.