Will 275/40/17's fit on the rear of my 87 LX??? Currently I have 245/45/17's and I used to have 255/40/17's and never had any issues. They would be going on a set of 17x9 Cobra R Replica's.
They will probably fit no problem if the car isn't lowered. If you have dropped it, you might need to roll your fender lips, but it shouldn't be too much of a problem for you.
Edit: Another discussion going on right now about the same thing Tires