anything over 18"s are only doing harm... unless you need the space for bigger brakes
but yea the back spacing on 05+ rims are from about +28mm to +35mm
sn95 backspacing was +24mm (on a 9 inch rim though).
So backspacing wont be an issue but height my be unless you get paper thin tires and try to keep the orignal tire height of 25.7"
tire sizes that will work to keep that height are 275/25-20 and 245/30-20 (245s are a better fitting)
So yea, they will fit.