I have a couple of questions. One, I have used original Chassis Black on the framework of my ’68 Camaro in the past but I need to freshen at least the leading edge of front crossmember. I want to know if I can use the new Extreme Chassis Black over the original formula without having to remove the original formula back to bare metal. Second, I would like to freshen the appearance of my taillight housing on this vehicle. Perhaps you are aware that the taillight housing is exposed inside the trunk so we are talking about the exterior portion of the housing that is inside the trunk. What product does Eastwood have for this resto. Thanks for your help. I appreciate it.