This kit offers the choice of Back-Up Light Switch OR Neutral Safety Switch Kit. Kit fits TH-350, TH-400, 700-R4, TH-200, 200-4R, and 4L60 transmissions. Single trigger for back-up light switch, or double trigger for neutral safety switch. KIT NOT INTENDED TO FUNCTION AS BOTH. All mounting hardware included. BL-1400U Back-Up Light or Neutral Safety Switch Kit TH-350, TH-400, 700-R4, TH-200, 200-4R and 4L60