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Autometer 3990 tachometer installation

tanny
in Electrical

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I have seen references to replacing the stock tach with an Autometer 3990 tach, but cannot find any description of how it is fitted to the stock housing and wiring. Has anyone done this? I would like to install one in my 1973 240z. Thanks, Victor.

  • 8 years later...

im trying to figure out the same thing,if anyone has any info. i would appreciate it.i see the last one was in 2005.thanks!

Edited by gearman50

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