My trip metre has stopped rolling on the clock & i know there is a cog that has to be replaced in order to fix it because everything else works perfect but i was told i have to pull it apart and check how many cogs the wheel has if you know what i mean? i was told to pull it apart by a ford worker but i just cannot be stuffed pulling it apart & was wondering if anybody knows how many cogs are on the cog itself for the 92 Ford sedan S pack speedos

Cheers pete. I know im bloody lazy!