Hotchkis 2278 2004-2006 GTO Sport Sway Bars - Manual (Page 11)

4) Slowly lower the transmission jack and let the differential and rear cradle frame tip downward.
5) Next, detach the endlinks from the sway bar using a pair 13mm wrenches.
6) Undo the saddle brackets by removing 1 bolt per bracket using a 13mm socket. Simply rotate the bracket
up and it will become detached from the cradle frame.