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Author Topic: Factory tach swap?  (Read 3618 times)

Offline Low87c10

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Factory tach swap?
« on: April 23, 2009, 08:22:42 pm »
I have an 87 c10, and somehow I inherited a factory tach dash from some other model year. How much of a wiring nightmare is it going to be to swap it over? Are there available wiring diagrams?
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Offline Captkaos

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Re: Factory tach swap?
« Reply #1 on: April 24, 2009, 11:34:59 am »
What year is the cluster out of?  If it is anything other than a 78-up it won't work, plus you HAVE to keep your speedo and the font wont match.
All the wiring schematics are in the Tech forum, you will have to repin everything to make it work.
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Offline Low87c10

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Re: Factory tach swap?
« Reply #2 on: April 24, 2009, 02:52:25 pm »
no clue what year its out of...any idea how to tell?
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Offline Captkaos

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Re: Factory tach swap?
« Reply #3 on: April 24, 2009, 03:41:43 pm »
73-75 has an amp gauge (never plug one into anything but a 73-75)
76-77 has a volt gauge with mechanical oil
78-up has all electronic gauges
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Offline Low87c10

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Re: Factory tach swap?
« Reply #4 on: April 24, 2009, 03:50:41 pm »
thanx!
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