You could turn a bezel/bushing, that could install from either the front or back of the dash; making the hole fit any gauge.

You could turn a bezel/bushing, that could install from either the front or back of the dash; making the hole fit any gauge.

That is an option, but I don't have access to the tools to machine out a bezel like that.

Just another idea, since it's flat black it wouldn't be too hard to fill the hole and make it smaller so you could run the 3-3/8 or whatever it is and just touch up the paint. I made a template, cut a circle out of wood and glassed it in one a hole in my dash in the TX. I mean if resizing it bigger is the problem. Technically this is still resizing it lol


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It would be impossible to match the faded flat black color....so I would have to repaint the entire boat......for a gauge. Yeah, not an option.


It seems that 4 5/8 is the common universal hole size for larger gauges. Seems likes Jones is the odd duck making a 4 1/4 gauge. I have found that Classic Instraments makes a gauge for a 4 3/8" hole. I would have to resize the hole slightly bigger. The gauge styles they offer in this size are to 'classy' for the crazy eights......so I will be resizing the hole to 4 5/8" 

That is an option, but I don't have access to the tools to machine out a bezel like that.

Got calipers?

Yeah I have calipers and no I sold the Jones with the magnito a long time ago

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http://www.speedhut.com/gauge/GR4.5-TACH-02-DM/1/Tachometer-Gauge-8K-RPM-Shift-light-(Dash-Mount)
 
Would that work ?


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Not sure how you would get a 2 cylinder signal to work.....

GT

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That's how you get a Ford to turn 10,000 RPM

Oh snap! Shots fired...Lol

GT

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I had to take the cheap shot

Peace, before it escalates

That's how you get a Ford to turn 10,000 RPM

Lol. Makes it even more funny coming from nice guy like flusher.

We are used to it from old crotchety Glenn.

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Ended up with a Autometer Sport-Comp 5" tach which uses a 4 ⅝" hole. I'll have to enlarge the hole a bit. Wasn't what I wanted to do but it'll work.

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Didn't have a hole saw that size, but I had a barrel sander. Traced the hole from the packaging then slowly worked the hole bigger. Made a huge mess but it's in there.

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