Does any one have pictures of the front and rear body brackets where you can see how & where they are attached inside the body. This is for a 1918 touring.
These are from my 15 they may be the same it may be a bit hard to follow but the rear unit screws to the floor and to a triangle piece of wood that screws to the vertical door support and finally the top cross piece screws to the arm rest wood. Along screw goes through the vertical wood, the bracket and into the horizontal wood. The front bracket screws to the wood seat assembly and the horizontal part of the metal bracket screws into the horizontal armrest wood. Both brackets screw to the wood under seat there should be a notch for them to fit into. 15 wood and 18 wood may be a bit different but I think the brackets are the same hope this helps.