70 Dart front tire question

Well, I finally got my 215-70s mounted today. I put the driver side on first. It fit nicely. I had the wife turn the wheel left and right so I could watch to see if there were any clearance issues. No problems. There is about a half an inch of clearance between the front of the tire and the fender at the closest point when turning to the right. I could also stick my hand between the tire and the frame with room to spare when turning to the left. So I proceed to put the passenger side on. Completely different outcome. While there is similar clearance between the tire and the frame, the front of the tire catches the fender quite a bit. It doesn't just brush it. It catches it by about a half an inch and actually will push the fender inward when turning the wheel to the left. I tried adjusting the bottom of the fender with the support rod that runs from the frame to the fender but it doesn't help. I don't understand how the car can be that much off from one side to the other. I'm not sure what I am going to do now. I don't know if I can trim the fender enough to clear the tire without messing up the fender. I may end up having to get smaller diameter tires but I really don't want to as I like the look of the 215s. Has anyone else ever had a problem where the tire on one side fit fine and the other side didn't?