Most servicing on this one is from the front. No pic available on the site. Im going to assume you need to replace the vent pipe at the back of the dryer?? If so, console popped up exposes screws to take top off, loewr front kickplate off, then front panel, then drum out. The vent pipe may be riveted to the blower/fan housing so you might need to drill the rivets out. .....Maybe a pic you could upload if you already have this air duct assy???