I live in my 2006 Toyota Sienna CE 2wd. Ground clearance is a bit low in the back due to a hitch/bike rack but I often find my self finding camping spots in Colorado/Utah. I'm an experienced driver in rough terrain but I currently have snow tires on from last winter and I'm getting no traction. Time to upgrade! I am looking for a tire that has a rugged sidewall and will give me grip for these rough roads. Looking at Falken Wildpeaks but open to all suggestions for 215/65/16 but was told in another thread 225/70/16 will fit? I do a lot of highway driving as I travel around the country but my lean of concern is the offroad performance as this van struggles with traction to begin with. Open to all suggestions!