a 315 is really wide.. To the best of my knowledge it will not fit without rolling the fenders on anything 79-98. I run Brigestone Potenzas 265/35/18 and 295/35/18. I had to roll the rear fenders to get 295s to fit on my 95. My wheels are the same size as yours. My car is also lowered using Eibach Sportline springs. Its really going to depend on which body style you haveNeed help on what size tires I should get on some wheels I am buying. Wheels are 18x10 in rear and 18x9 infront. Car is lowered about 1.5”. The fenders are not rolled. I was planning on doing 315/30/18 in rear and 275/35/18 infront. Any suggestions?