A 1965 Ford Thunderbird doesn't have trunk drain hoses in the same way a modern car might. Instead of dedicated hoses, the trunk relies on
drain holes in the bottom of the trunk pan. These holes allow water that accumulates to drain out from underneath the car. There aren't specific locations you can point to as "hose exits"; the water simply escapes through these openings.
You'll need to look very closely at the bottom of the trunk pan, both inside and outside the car, to locate these drain holes. They are often somewhat hidden and might be partially blocked with debris. Keep in mind that rust and age can significantly affect their effectiveness.
