I have a 2006 Quad Cab Dakota SLR Patriot Blue with 16" rims. I would like to buy new rims and tires to lift the truck up higher. Does anyone know some safe rim and tire combos that will work with this truck to get it up off the ground more? I would like to at least go to 18" but I don't know if that can be done safely either. I have a five lug pattern on the rim. Any help is appreciated. Also, what is the biggest tires I can buy that will still fit on the stock 16" rims? Thanks.