I have an aftermarket Speedometer, due to my tranny swap... I had an VSS now a mechanical tranny... the speedo is a 1:1 ratio... so if I am going 60 I am really going 45 and if I am going 50 I am really going 35 I can deal with that... now the problem I am having is that the speedometer will not go pass 60 now! WHY! it used to and now it wont... anyone know?