I recently purchased a door bumper kit and have no
The square bumpers with a hole in the middle go at the top of the door opening. If you look at your door header strip, towards the rear end you will see a square hole cut in it with a tab of metal bent over. This bumper goes there.
The other square bumper that has tapered sides goes at the bottom of the door towards the rear end. There is a piece of metal spot welded to the bottom of the door that is 3 sided. The bumper sets in this piece of metal and the metal bends around it to hold it in place.
The other pieces make up the female dovetail which is a cavity in the door. The rounded part of the bumper goes towards the metal clip. You shove one bumper in the cavity and up, the other in and down, then force the metal clip between them. A little dish soap helps the metal clip go in easier. You may need to shave the back edge of the bumper slightly if the cavity is too tight to get the metal clip in place.