i mounted the gauges to the black metal cover thing under the lens
i had to cut the holes out and trim the lens around the gauges
and i had to cut the mounting point for the stock gauges all the way out of the plastic dash basically destoy the dash to the point the factory gauges will never go back in but the aftermarket gauges work pretty good so its no big deal
as for the tach i cut the plastic on the back of the tach and cut the dash up until the tach fit and i had to pull the chrome trim ring off the front of the tach after doing that the glass on the tach was loose but the black metal cover thing fit the front of the glass rubber seal tight and it compressed it together pretty good
i just finished putting the dash in the car and hooking up the gauges
with the glare its hard to get a good picture but here are some