"SS" Driver and Passenger Side Door Panel Emblems (GMK403345870P) by Goodmark®, 1 Pair. The doors on classic and muscle cars are different than other body panels in that they can not only suffer from visual deformities like dents and rust, but they're also subject to operational maladies like worn hinges, sticky window cranks and binding locks. Unlike fenders and quarter panels, doors must appear and function properly. To make sure the doors on your classic or muscle car look their best and work like new, you need replacement door components from the restoration experts at Goodmark.