I have gone through 3 sets with my car, The first set went in beautifully, BUT, I got lucky and fitted it well without knowing what I was doing. Then, my seat pedestals were the wrong ones and I had to remove my interior again so I decided to change to the pony insert ones and used the same method as the first time I installed it and it got WAY off center before I realized it and by then it was too late, I had cut too much off the passenger side. Then I read an article on the proper way to install carpet, starting off the shifter for center and everything fit perfectly. Then I installed a set into my fathers 73 with the same method and had great results. My point is, make sure you are installing it correctly and be very patient with it. They were all ACC sets. Good luck!!