well first your gonna have to get a jack or a lift, jack the car up and take off the wheels you got on there now, you can use a 4-way or an impact gun for this. then you set the new wheels on and put the lug nuts back on with the impact/4-way. then you let the car off the jack/lift and your done. simple
j/k man i know what you mean. they will go on with no problems. it shouldnt scrub the back unless you got a car full of people. and you might loose the slightest bit of turning but not much at all.