Removing wiper arms on '74 Duster

I need a little help.. I am disassembling my Duster getting it ready for paint. Most of the trim is off, but I know I need to get the wipers out of the way. I tried searching, but didn't find much.

Anyone ever take the whole wipers arms off?? Do I need a special tool or what? I bought a full service manual, but it doesn't explain a whole lot...

Any help is appreciated..
Thanks