Acadia II Replacement Seat Back, NO Pad

Replacement seat back for the Acadia II by Perception. Some simple assembly required. Instructions are not included. The height of the seat is 11.5 inches, 15 inches wide. The seat back has two nubs on the bottom edge that insert into holes in the seat bottom structure. The nubs are 17.5 inches tip to tip. The nubs are 1 inch in diameter, 1 inch long. Alternative part number for this seat back structure is 18500036. A replacement pad (17040054 aka 9800328), and push rivets (30700020) are available.   SEAASSY PERRECTOUR