Cluster dials change

[Roman1]

hi,

Speed sensor on different instrument clusters

Hello folks I was wondering if there are different speed sensors to the different kind of instrument clusters?? I have an Tokyo imported GTO where the speedo only shows 180 km/h and I managed to get hold of an american cluster that has miles and km/h showing, but when I tried changing them, the american one will only read up to around 30 mp/h even though I drive much faster, so I changed back to the original one and then it shows the normal speed again, so I was wondering if there is any diffe…