I have a very noisy speedometer in one of my L78's. So noisy I can't drive the car with the speedo connected. It also twisted the end of the old cable off. The cluster does not look that bad for being original and all the gauges work but thought about sending it to a reputable shop to have it restored. Anyone have a positive/negative experience with doing this? I imagine the speedo head is worn and there is no place to lube it that I can see. A repo speedometer is just under $300 but would rather put that money in restoring the original cluster.