Remove the screws  from the front of the way cover.
Remove the screws from the wiper assembly  for the way cover.
Remove the way cover assembly .
Remove the wiper assembly from the casting.
Make a starting mark  in each of the (2) marked locations.
Drill a 10-32 x 3/4" (19 mm) hole into each location.
Tap the holes with a #10-32 tap .