This is the ultimate accessory for your 65-66 Mustang. Our Rally Pac features a modern air-core movement tachometer and a quartz movement clock. Both the clock and tachometer faces feature the original style fonts but are backlit for improved visibility at night. The housing and bezels are pressure zinc die-cast from our own tooling and coated with a tough Du Pont crinkle texture. Our Rally Pac's include a mounting bracket, color-coded wire harnesses, and easy to follow installation instructions.