I've taken my dash apart multiple times, 67.
Special tool unscrews nuts holding hazard, light and wiper switch. Wiper switch goes thru metal of dash, as well as my radio delete plate. Heater controls, take off knobs with small allen wrench. Controls are held on by 2 hex head screws into back of plastic dash. There are also 2 plastic locating tabs next to screws, if they haven't broken off. They are not easy to get to or see sometimes. Take a pic with your phone to get a good look.
When you get the 2 screws out heater control arms, cables, stay behind, dash comes out.
Putting the heater controls back is even more fun.
