How do you remove the cabin on a 1990 gmc sierra?

To remove the cabin on a 1990 GMC Sierra, start by disconnecting the battery and removing the dashboard, which involves taking out screws and clips holding it in place. Next, remove the seats and any interior trim or panels that obstruct access to the cabin. Disconnect wiring harnesses, hoses, and any other components attached to the cabin. Finally, unbolt the cabin from the frame and carefully lift it off.