You most certainly can I've had to do this to a few cars. Take door pads off (watch those pine tree looking fasteners...I usually buy a box of them) Once your in you'll have to move window up and down to get at all the armachor.What Patrick said....
Also ,
As for the window regulator and stuff , A spray can of lithium grease works great getting in the tracks , gears , etc. You will probably have to clean the window several times after doing it ..cause unless you have perfect aim , the glass is gonna get greased too.