43/14 = 3.07
Are you sure you counted the teeth correctly?
These Ford axle gear ratios and tooth counts are as follows:
4.56 = 41 tooth ring gear, 9 tooth pinion
4.30 = 43 tooth ring gear, 10 tooth pinion
4.27 = 47 tooth ring gear, 11 tooth pinion
4.10 = 41 tooth ring gear, 10 tooth pinion
3.91...