I've got a willing board member helping to ship my arm rest bench seat for the 67, but its not obvious how it comes apart! I need some help in taking the back rests off the seat. I took off the outside press on clip on the back rest but I don't know what needs to be done to release the back rest on the inside. Can someone explain how to take the backrest and the centre arm rest off the main seat bottom? Thanks! - Bill
