This is a locking clip that is for the accelerator pedal linkage below the floor. See the picture.
Screw Cap for Vanagon Interior light grey
Speedometer Cable Syncro Vanagon (long version)
Antenna passenger side mount only
Center Section of Vanagon Rear Fiberglas Bumper from 87-92
Fiberglas panel in front of sliding door for GL and Carat Vanagon 88-92