3ryce Posted July 24, 2013 Share Posted July 24, 2013 I think its current triggered. stock 73 june dated Quote Link to comment Share on other sites More sharing options...
rsicard Posted July 25, 2013 Share Posted July 25, 2013 I also used the Speedhut speedo. Ordered the 3 3/8 inch and machined a round plate with a round hole in the middle to mount the speedo. The outside of the plate is machined to just fit within the back half of the original speedo. Then tack welded the machined plate to the back half housing just behind of the four dimples of the original housing. This places the speedhut gauge bezel where the original was at an optimal depth reusing the original plastic bezel that mates with the original metal housing. The tach is triggered by ignition breaker points, 0 volts closed or 12 volts open or equivalent by solid state electronics. Quote Link to comment Share on other sites More sharing options...
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