Hi all has anyone got any detailed pics of a dismantled gear linkage im wanting to refurb it ie have all the metal parts re-zinced my question is i am able to press the rubber bush out of the support rod leaving it bare but the bar with the u-j on it has a rivet pin through it with two nylon washers.Will these survive the zinc process? has anyone ever had any of the linkage parts re-zinced? any help would be great.