Im looking for info on what size sockets to use to remove a front left coilover where it bolts to the control arm, i know the top three bolts are 15 mm but i dont know the size for the bottom bolt and nut. Any info would be greatly appreciated. This is for a 2007 f150 supercab 5.4 liter flex fuel 4x4 @ 147k miles. This part is an original piece.