Just finished installing a Jeep CJ tach in the empty clock space of my '67. Started out as a "I think this will work" project. Progressed to a "This ain't gonna work" project. But surprisingly ended up being a "I'll be damned! It worked" project.
I was worried it wouldn't work with my Pertronix ignition, but I hooked it up per the instructions with the tach lead going to the negative side of the Flamethrower coil and it works just fine. I also had to modify the case a bit to make it fit. Otherwise it would have been too long and would have hit the vertical support behind the instrument cluster.
I just wanted to share with the group because I've gotten all kinds of good info and advice over the last couple years with my car and can finally contribute something for once. Here's a few before and after pics. I just have to order some LEDs to replace the stock bulbs because the new tach light REALLY shines above the rest.
This first group shows what I had to do with the tach behind the instrument panel
Just keep in mind, that particular Jeep CJ tach will not fit unless you cut down the case. The magic number is 2 1/4". That's the distance from the back of the instrument cluster metal case (when installed) to the vertical support behind the dash opening. Anything deeper and you won't be able to reseat the instrument cluster. That's how it is on my '67. Might be different distance on other years, I'm not sure.
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