This replacement speedometer gauge from Omix is built to the same specs as the factory original unit. The gauge fits 44-45 Willys MB and Ford GPW, 50-52 M38 and 52-71 M38A1 models and features a 0-60 mph speedometer and an analog odometer. This speedometer is 3.5- inches in diameter and is a direct replacement for the original. (Short needle style)