Fiat Ducato speedo problem

Did you have this problem before the gearbox swap? If not, it could be that the wrong 'box was fitted.🤔

PS ..... capitals is considered to be shouting 😉

Looking on the bright side -- At least there is less chance of falling foul of the Speed Cameras. 

K 

interesting - is the same scale factor (1.5) used on all speeds? 

Most speedos seem to read high these days but normally less than 5 mph and not as much as yours.

Another thought, Ducato instrument clusters are often reported as being faulty. However, if the speedo is not an electronic one, MM is probably right.

(PS. Mods, this is also in stories and I think it’s a MH rather than a towcar.)

i ommited to say that the sensor has cable drive and electric socket ? should both be connected or only one ? even fiat dealer couldnt understand this !!