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Speedometer Driven Gear

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Old Dec 14, 2018 | 09:41 PM
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Default Speedometer Driven Gear

What is the stock gear count for a 1980 L82? Stock rear end and I pulled a 23 tooth gear out of the trans. Not sure if it was the right one, speedo was barely readable with how much it jumped. Could an incorrect gear cause the jumping I was experiencing? Transducer is working and new cable, haven't had chance to test them though with the trans all apart.


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Old Dec 17, 2018 | 07:47 PM
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If the driven gear adapter is plastic, hunt down an aluminum one.
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Old Dec 17, 2018 | 08:31 PM
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I don't think the speedo gear would cause that problem. More likely a sticky cable, or a problem with the speedo head itself.
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Old Dec 17, 2018 | 09:54 PM
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23 tooth turns out to be the wrong size and the hole for the end of the speedometer cable was completely worn out. Ordered a new 8 tooth drive gear and a 19 tooth driven gear.
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