Tire rubbing

No.
Unless you adequate clearance when the vehicle is stopped, AND at least one inch of travel before things rub. Then, a HD shock, or an adjustable shock can make a difference, only by virtue of it delaying the body's reaction to bumps. If you do not have the one inch,replacement springs with a higher ride height are the better answer. But the best answers have already been presented. Well those and custom wheels. With a custom wheel you can really fill up the fairly large wheelwell. WheelVintiques is one supplier of affordable custom rallys. Sometimes you gotta back up to go ahead......I got a shed full of parts that proves I am not the brightest bulb in the package.