mojoel, yes, narrower tires will make steering easier. 16" wheels are common, but a lot of them suffer from rust (at least in the Southeast U.S.) Repros are available. Be aware, some will take original hubcaps, and some only will take the special caps they sell. If you have stock brake drums, most any 6 lug will bolt up. Offsets will be different, too. If you have front disc brakes, stock rims will probably not work. Good luck!