Dear Group, Is there any way I would be able to calibrate the speedometer in my '90 New Yorker? Is there any adjustment, or does a professional have to do it? It is off by 5 mph (when it reads 50, I'm really going 45) .. not much but... The thing is, I replaced the speedo with a model out of a '93 Dynasty and that one is 5 mph off too. Is it the nature of the beast to be off like that? Could it be the speed sensor? Anyway, any advice would be appreciated. Thanks in advance.. Dennis sed55(AT)yahoo(DOT)com