Changed my dial faces and speedo was out afteer. Assumed it was just poor connection at back so tried again and made things worse lol.

I disconected from gear box plugged in properly then reconnected but its still not right at low speeds.

Using a snooper gps speed its out up to 60mph and then seems to be okay? I've got a v3 simple wire that goes into a KM converter on back of clocks.

Any ideas people?