'87-96 Window Channel Spacer

The divider bar (back of the vent window frame) is deeper in this year range, and the glass is correspondingly shorter front-to-back, so this spacer is installed to take up the difference. Removing it allows the later vent window to be used with earlier main window glass.

For more info, see this:

Owner caption November 2008 · Photo 2447 of 5000