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On the back of the speedometer there is an adapter, on the adapter there is KMH or MPH where the cable hooks to the speedometer, however there is no drive in the MPH side it is on the KMH side, the odometer on my machine reads 6400, any help or comments with this, may be the deciding factor between complete rebuild or pistons and rings, I also checked my 98 670x and it has a drive on both. This is on a 2000 Summit Highmark 700, thanks.