Ok guys so been restoring an 83' SS with my son and after deciding we wanted to do away with the factory gauge cluster and searching all over the net for ideas and or options for 3-3/4' & 2-1/16 comp gauges this is the solution we came up with. Using CAD one day at work (it was a slow day what can I say ) I drew up a mounting plate and had it laser cut from 1/8" 6061 aluminum. We then purchased a new stock shadow box from MIkes Montes, mounted the aluminum plate and cut away the shadow box interference. Once the gauges were mounted we had to remove material from the back of the housing that the shadow box mounted to because the gauges were too deep- We plan to use an end center console gauge pod for mounting the oil pressure and temperature gauges.