Here are some photos of my original color paint in the wheel wells of my Firebird. The bottom had too much under coating on it to determine body color.
Harold, Although the wells got the initial primer and acrylic lacquer body color, I don't believe the '68s left the factory with the body color showing in the wheel wells. My '68 did not get an aftermarket undercoating yet the wheel wells were coated with a thick coating. Wanting to duplicate that coating I found an asphalt spray called Preservatek that seemed to be the closest to the documentation and look of my original coating. The coating is referenced twice in the '68 Sales manual: - Under standard body features: "The inner fender, or shield, designed to utilize wheel splash to rinse away dirt, mud and salt, is protected against corrosion itself by a special coating of asphalt latex." - Under soundproofing and insulation: "A heavy coat of mastic is applied to wheel wells and inner-door panels,...."