2010-11. Left.SEAT BACK COMPONENTS. Left.WAGON. Right.SEAT BACK COMPONENTS. Right.WAGON. Seat back frame grommet. A component which cushions noise, friction or movement for the Seat Back Frame. A cylindrical insert that fits between the Seat Back Frame and another component. A protective sleeve which provides a cushion between the Seat Hinge and it's mounting surface. Seat Back Frame Grommet. Back. Hinge. Pivot bracket.