Review on 🔒 ACDelco GM Original Equipment GT299 Fuel Tank Filler Cap: Durable and Reliable Black Cap for Efficient Fuel Tank Seal by Seth Singh

Seals better than my 1998 factory cap. As others have said, the tether is too short for a fourth generation F-body. I was able to remove the leash from my old cap and attach it to this one. I destroyed my old cap in the process, so make sure this solves your problem if you go down this route.