RayJ, I'm not sure what the total length of the spoiler is but I can measure it tomorrow. It is a 69 Eliminator spoiler but they were both the same length. The distance between the pedastals on a 1970 Eliminator is 36 inches. The 69 pedastals are only 31 inches apart.
RayJ, I just looked at the Mustang Unlimited site and they sell reproduction spoilers. They say the length on the reproduction spoiler is 57 1/2 inches in length. I will measure mine tomorrow and confirm this.