Tacks

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10-04-2011, 06:22 PM

cracked block

Mountain Pass

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Tacks

Can someone tell me why they put tacks in cars and trucks with auto transmissions?

thanks, Tim

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10-04-2011, 06:25 PM

ToMang07

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Because it's nice to know what RPM you are operating at, good for diagnostics, and You can manually select which gear you are in, and you need a tach to know when to shift gears.

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10-05-2011, 11:01 PM

monckywrench

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Mostly user entertainment unless the user is racing.

Folks were shifting gears manually long before tachs (not "tacks") were standard equipment.

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