I had the same green interior in my '69 Charger, and I wanted to dye it black as a temporary change until I could afford new. That was 2 years ago, and it hasn't scratched off or lifted off yet. It looks so good and has held up so well, that I'm thinking it's permanent. I used a spray can dye made by SEM. Hardest part was getting everything really clean. I used a battery scrub brush and simple Green to clean the hell out of it. Then, just prior to spraying the dye, use a 50/50 solution of rubbing alcohol and water on a rag. It opens the pores of the vinyl and lets the dye go in deeper. It was a lot of work, but it came out great and I saved A LOT of money. I think I used 11 cans of dye for the whole interior. Less than $150. Good luck