Speedometer sender for 64-65 a833

Calebnielson6 said
Alright so I got a 64-65 a833 with the wierd small speedometer gear, not the larger a904 gear. Its also been snapped off. Anyways is there any way to convert it to electronic like the a904? Or do I have to get a later model tailshaft to be able to fit the bigger one?

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Convert it to a GPS converter and forget inaccuracries.
JEGS 41800: Mechanical Speedometer Converter with Built-in GPS - JEGS High Performance

I am not endorsing buying this from Jegs though.