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Speedometer to KM Max

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Old Sep 9, 2021 | 04:05 PM
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Default Speedometer to KM Max

I was looking and wondering if anybody seen or done a speedometer upgrade from miles to Kilometers. The issue I'm facing here with my C3 1980 is that the speedometer max speed is 85 MPH (~140 KM).. Some highways in this part of the world speed limit is 160 KPH (~100 MPH). Are there Speedometer stickers around and what do i need to consider changing (speedometer drive gear and so on). has it been done before?
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Old Sep 9, 2021 | 06:04 PM
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Put a 79 speedometer in it. 0-140 both Miles and KM's

You may have to change the speedo gear in the tranny, that is an easy job.

https://www.ebay.com/itm/27228476664...iABEgKLVfD_BwE



Last edited by L-46man; Sep 9, 2021 at 06:10 PM.
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Old Sep 9, 2021 | 07:00 PM
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Zuhair
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great

thanks

that's a quick solution, now which SpeedO gear?
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Old Sep 10, 2021 | 09:34 PM
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Most all GM speedometer cables rotate 1000 revolutions per mile. If you speedometer is accurate now then it will still work after the swap.
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