There is some speedometer correction possible.

My truck supposedly has 11 teeth in the transfer case that drive a 30 tooth gear on the cable.

There is a 29, 32, and 33 tooth gear available from the parts desk to work with the 11 tooth in the transfer.

Other combinations from the factory are 32:10, 27:8, 18:6, 19:6, 20:6, for different drivelines.