Gertrude, our 1968 Newport convertible, marks only about half the actual distance she travels on the main odometer, and seldom twitches the trip odo. I can manually reset the trip odo, and get it to log about 9/10s of the actual distance travelled, while rolling after the reset, which also MUST be done while rolling. I suspect the speedo cable needs replacement for one thing, and have an ATP one, which I'm not thrilled about but which supposedly will work.
BUT, I suspect the odometer...
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BUT, I suspect the odometer...
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