My 1968 448 is pretty low (see signature for reference) and the bottom scrapes when I go over speed bumps. The ride is pretty stiff too. I bought it like this and I really like the lowered look, but when I drive in/out parking lots or residential streets, I always have to worry about speed bumps or dips. I was thinking of installing airbag suspension so I can adjust it as I drive. Any suggestions?

 

Probably a lot simpler and less invasive to get new coils all around to restore proper ride height. Also note that these cars did sit fairly low when new, as evidenced by any number of factory photos. Shouldn't scrape on anything, though.