I'm about to do a fluid and filter change on my E4OD, and I remember reading somewhere the filters like to fall off and that Ford came up with two solutions to that - one is a magnet that goes between the filter and the VB, and the other is a steel clip that is held in place by one of the VB bolts. Does anyone know the part # for the clip? Also, I just read a few threads that say the filter change ain't required, or even suggested by Ford - is that correct, and if so what would be the logic behind it? Finally, part # for the filter, I'd assume it can be obtained through a Ford dealership?