During the construction of the upper legs, I realized I placed the gear assembly on the wrong side of the part. Unfortunately, that meant pulling out a Technic pin which was flush to the outside of the frame and no way to grab the pin from the inside. This video is taken from Part 2 of my AT-AT build series. You can watch the full video here: Part 2 • Star Wars AT-AT LEGO set build Part 2 #LEGO #ATAT #starwars #legostarwars #UCS #75313 #difficultpin #technic