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81 Speedometer Transdcuer's - Keep burning up

mark97213

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mark97213 Enthusiast

mark97213

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Greetings all.  Looking for some advice on why I might keep blowing speedometer transducers.  I've gone through two replacements and although they work fine for about 30 minutes, they eventually just stop and the speedometer fails.  Any idea what would cause the transducers' to keep failing? Rebuilt transmission with new speedometer plastic gear in transmission.  I'm at a loss.

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