Loose motor home dash

I have a GB motor home with a loose dash 1999. Removed all foam along front area under dash removed screws and cleaned as well as possible about 4 inches wide.this lets you raise dash from front fibreglass lip in front..drilled about 12 holes for new screws .before tightening use caulking gun and insert windshield eurethane between lip and dash. Lower back down. And screw in new screws they are short so do not tighten..let cure for 12 hours. Re-seal with spray foam..you will be surprised how well this works at least on our unit..good luck