The only thing holding the crash pad in place are the 8 screws that go through the two black plastic screen vents. I have to drill new holes for the ST screws, which is not easy.
On 4688R the crash pad was actually glued and stapled to the wooden dashboard, so it seems in production, they must have been pre-assembled, and put in together.
On 3089R, I had terrible trouble getting the new dashboard to fit in the new Banks crashpad, and slightly damaged the new wood forcing it into too tight a space.
Obviously all this has to be done with the screen out to get to the 8 screws.
Then the dashboard is held by the steel angle trimmed with black vinyl which bolts to the door brackets, 2 bolts welded to the angle each side, then to the top by chrome pan head screws that go through fibreglass on the top of the dash below the crashpad (easily broken) and then the wooden dash is held with bolts to two right angle brackets on the centre tunnel, bolted to the chassis. This is the earth point for lots of wires.
Then the wooden dashboard acts as the support for the steering column.