Do Not follow this Video! Or even most others claiming you need a "special tool" that Rodney etc sells. You can get or make a low clearance #2 Phillips very easy and you Do Not need cutting the door like this.
I won't even bother using any offset tools to get the outer screws.
Why? Again... Often the rivets holding window and regulator, regulator is entire machine make window to move, are bad. Not just Fiero have this same problem and often only after 10 years or less. Fiero is far easier then nearly all others Because to outer skin is easy to remove. Inner felts often don't go bad because only contact the glass part of the time and doesn't get trash like outer felts.
If you pull the outer skin then just carefully remove two rivets holding glass to track to get at all points for outer dew wipe and inner felts
with normal tools.Replace the rivets w/ small bolts as I posted above.
Outer dew wipe screws have holes in the inner wipe mounting surface to install the screws at GM.
Best is drill/grind the rivet and replace one at a time to prevent loosing parts or adjustment for the regulator.
Only remove 2 rivets for window itself to the track so you can move the window.
Or remove all window rivets so can remove the entire window to work on everything else. Window comes out same way it went in... thru the top slot.
You could get new rivets and tool from HF etc but you likely only use it 1 time. Not sure if HF heavy duty kit have right size of rivets for all spots.
Note: Outer Skin T30 screws get rusty. carefully pry the edge of plastic on the screw to spray the "nut" w/ PB Blaster etc a day or three before you work.
ETA--> don't spray a lot of oil. Most will run down and be a real mess, often a smelly mess too. Too much will damage the skin too.
[This message has been edited by theogre (edited 05-14-2019).]