Yes, strip eraser is the best. But you can loosen it up with 3M adhesive remover then the wheel and a plastic scraper to help also. Do a google search for the remover and it will bring up the other tools needed. I used to remove/change decals on the doors of semi tractors and these are what I used. NEVER use a razor blade! BTW, there WILL be a shadow where the old decals were, but they make a perfect template to where the new ones go!