Don't know about your 59 but the AD 47-54, you can take the hinge out of the pocket with out any problem other than the bolts being tight and kind of heard pulling the hinge out of the door itself.
Maybe someone with a 59 will chime in.

Have you checked the Online Manuals to see how it says to do it?


1937 Chevy Pickup
In the Gallery
1952 Chevy Panel
In the Gallery
More photos
1950 Chevy Coupe
Pictures!

I'd rather walk and carry a Chevy hub cap than ride in a Ferd.
I can explain it to you, but I can't understand it for you smile