Rear cab mounts will be different, the late 47 and the 48 cabs have a single centered rear cab mount, later AD years have two rear cab mounts, one on each side of the frame.
Chances are you can re use the style of cab mounts on the cab you like. You can not change the cab mount styles from one cab to the next, as the internal structure that supports the mounts is set up for one or the other, depending on year.
Grigg
