my trany started hitting really hard now the odometer not working on 1992 Ford F-150

it has a c40d trans put new shifting kit in filter and fluid, still hit a little but not that bad, just dont know what is wrong with the odometer wondering if it had a in line fuse

Asked by for the 1992 Ford F-150
need to check wiring to speed sensor on trans. if not on trans, speed sensor in rear differential. speedometer sends speed signal to computer on this model to shift trans. have seen a few speedometers go bad also.