Fuel sender install

The two "tangs" that you are talking about are to position the end of the pick-up at the proper location in the tank (so you don't rotate the end up to a higher position). You have to get the sending unit almost in, then line up the tangs in the unit to the holes in the tank. If they do not fit, then I would bent the tabs so that it goes in the tank properly. The tangs are used to clock the sending unit...