I ordered the heating element unit which included the the heating element already wired inside of the metal tube. I took out the old heating element unit and reinstalled the new one. I also tested the heating element for conductivity like you suggested to determine why my dryer wasn't heating. The hardest part was to get the metal tube to slide into the opening in the rear of the dryer due to the shape of the metal tube. It took some time and effort to reshape the tube to fit the opening.