1980 rubbing tires

hi all.. i just just bought 275/40/17 tires for the rear of my 80 mustang hatchback. mounted on 95 cobra R wheels, 17x9 most of the fellas here helped me out, and I went with that.. I got Goodyear Eagle F1 all seasons and spend buckkoooo bucks on them hahah.. i love my stang as you all do! i...