I am in the process of replacing the hood pad on my '82 300D. I have tried numerous types of solvents in an effort to remove the existing adhesive. Nothing works very well. Any suggestions would be appreciated. Secondly, would it be worthwhile to remove the hood from the vehicle when installing the new pad? It would seem that being able to lay the hood flat would make the installation of the pad much easier. But getting the hood back on "right" might be a challenge. Insights?