[QUOTE=pawoSD;1793420]Is this on your '88 300TE? It has an electronic speedometer....so its likely an issue with the pickup/sender on the transmission, or an issue with the gauge itself....as there is no mechanical
cable>>

That chassis is cable..they did not use electronic speedo until '96..
All 124 chassis are cable. There is a pick-up in the speedo head , but that gets a signal from the cable rotation and is used for CC. Nothing to do with the speedo reading...........

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A Dalton