My Gauges are stock in my 86 El Camino, but they do not seem to work. My speedo does not move and nor does my RMP. I did an engine swap and my mechanic said that there might be a problem with the new transmission I stuck into my el camino that the teeth do not work. He said that if that does not work then it more internal and not worth looking at. I was wondering if anyone had any ideas on what to do. I am not sure were to go from here.