12-13-2013, 11:24 PM

Ben M.

Ultimate Warrior

Join Date: Jan 2004

Posts: 2,814

Quote:

Originally Posted by T70GTO

any thoughts?

All of the '75-81 Trans Am tachs I've worked on have been 2 wire: +12V pink and coil is brown or white depending on year. The case is grounded through the cluster housing. Earlier ones may be different and require a separate ground lead that HPP is referencing.

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