During a trial fitment of the bezel into the dash, I overstressed the fitment and broke the tach's glass. Sent a note to AutoMeter about what I did and most importantly a link to the "how to build a better Bezel" which uses their gauges. They sent me a new piece of glass at no charge which I reinstalled this weekend and did a fitment test into the dash with success.
Thank you AutoMeter
Thank you AutoMeter