I hired a hot rod interior specialist with over 30 years experience to install the headliner in my '72 RR because I had never installed one before. He had some difficulties doing the job and when he had finished, it just didn't look right. I finally pulled it back down myself and discovered that he had installed it backwards. Once I turned it around, it fit perfectly. I had to turn the offset-mounted dome light around to cover the incorrectly placed hole cut but everything looks beautiful and there are no wrinkles anywhere. I thought that I was going to learn how to install a headliner from this "professional". And I did. Good luck!!!