Pull plug and shut off gas! The lower oven burner is held in with two rear and one front screws. I removed the top floor of the oven (two hand tightened screws at the back), the bottom drawer, and the front door (just lift it off the hinges). This allowed me to access the burner, and I removed it by unscrewing the three screws, unhitching the igniter connector, and lifting the burner and igniter up and out. I connected the new igniter on the new burner before installing it in the oven, and found that the connector did not match (I was warned about this possibility on the PartSelect site), but instead of splicing the wires together, I cut off the connector on the new igniter and replaced it with the connector of the old igniter. Then I screwed the burner into the oven, recoupled the connector, replaced the floor, drawer, and door, and I was done! It took about 45 minutes.