Disconnect both sides and lift
your swaybar up until the loose end sits somewhere near the middle
of the frame. Mark that spot and drill a hole for the holding
pin. We suggest you use a smaller bit for a pilot hole and then
use the 1/4" bit that is called for. Use oil on your bit
to keep from burning it up.
Use your 5/16" x 18 tap to
finish the hole. Be sure to use plenty of grease or oil here,
too, to ensure that you don't destroy your hardware. Another suggestion
is to cut a bit, back out, then cut more. Repeating this will
help you tap a cleaner hole with a good fit for the bolt.