There is a recess in the padded armrest, it has two screws holding it down. Remove them and pry up on the armrest - it should lift out. Pry off trim around inside door handle - I don't think there are any screws holding that on -think it just presses in place - pull on inner door handle and work the trim piece off. Either behind that or behind the arm rest there is another sheet metal screw I believe holding the door panel. All around the perimeter of the panel are plastic plugs mounted on the back of the panel and pushed into holes in the door. The object is to pry them out of the holes without tearing them out of the cardboard on the panel. They make a tool to help remove them - it looks like a fork with only two tines on. Two screwdrivers can be used to do the same thing - you could also use a needle nose pliers in the same manner. Think there may be one or two of the plugs in the center of the panel also. Way up at the top of the trim where it narrows down is another one. Once you have them all out push up on the trim panel to release it from the window channel. It should lift up and out. Once you have popped one of the plugs loose - take a look at it and you can see how they function and have a better idea how to get them out. They are generally toast once you remove them and won't hold well for reassembly - but depending on how mangled they get and how fussy you are - they may work again.
Have fun
Using a screw driver, remove the screws and the clips in the panel of the door and remove the panel gently. Remove any wiring connectors between the panel and the door, then remove the panel the rest of the way.
The 2000 Chevy Astro sliding door panel is held in place by two retaining screws and eight retaining clips. Remove the retaining screws and pry outward on the retaining clips.
The 2002 Chevrolet Astro Van passenger door panel is held in place with two retaining screws and eight retaining clips. Remove the retaining screws and pry outward on the retaining clips.
Using a screw driver remove the screws from the door panel, remove the clips, and pull the panel away from the frame slowly. Remove any wiring connectors, and remove the panel the rest of the way.
IT IS MOUNTED BY RIVETS. YOU MUST DRILL THEM OUT
Remove the dppr panel and there are screws on the inside.
you have to remove the driver seat belt and remove the panel it is behind there
Open the Driver's door and look at the side of the dash. Remove the side panel panel.
behind right kick panel
remove the inside door panel and go from there.
Open the driver door and remove the panel on the end of the dash
Is it bolted or riveted . Drill out the rivets and use bolt on the new motor.