Getting to the bolts that hold this support in once the towers are sealed up is not all that easy. Still, it is doable. I could only get an inch and a quarter height and still clear the scat tube for the vent, but the panel cutout is only an inch and a half....so close enough. I chose not to even attempt bucking rivets inside that tower...so pop rivets to fill holes and cherrymax to hold the support. I put a doubler in place to make pretty and cover old holes.