Our Ammeter Gauge is made to be a direct replacement for your original 1972-1974 Corvette Gauge. This gauge will work as a functional replacement for the 1975 Model Corvette but the gauge face markings are slightly different. Dial face is black in the background with white font and graphics. Gauge reads from -40 to +40 Amperes and has the word "BATTERY" in the lower center of the face. On the rear, there are two posts, one above the other, spaced at 1" from center to center.