I'm trying to get my odometer to work. I replaced the 26 tooth gear but there is still no movememnt on the odometer. The speedo works but no odo.
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Simon 1980 240 320k 19 years. 'White Lightning'

I fixed 2 last year, an 87 and an 88, that had good gears and lost the drive motor. One came that way- the motor was pulled off the circuit board.

If the gear is fine, replace either the whole speedo head or disassemble and resolder the blue and black wires to the circuit board. The odo drive motor board is actually the connector on the back of the cluster; the blue and black wire bring the signal to the coil for the speedo needle, so you know it's getting the pulses from the rear end.

I swapped my circuit board because I wanted the mileage to be close to correct and the only units I had were way off. Swapping the whole speedo head or even cluster (check years, you want an 86-88 unit) is simpler.
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Rob Bareiss, New London CT ::: 92 244-M47-207K ::: 90 745GL-M47-268K ::: 88 245DL-AW70-230K ::: 88 244 SOLD! 87 244 SOLD! Still looking for a bright red or black 244 with sunroof...

I got a complete head from the yard. Both the speedo and the odo didn't work. I took it back and got another one and put the new gear in it. Works like a charm. It also has a tach so I have to hook that wire up.
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Simon 1980 240 320k 19 years. 'White Lightning'