That seal slides over the edge of the glass and then the glass is set in the hatch. The A/M doesnt fit worth a shit. There are 2 pieces also. The lower piece that runs from the edge of the top around the bottom and back up. Then the other piece goes across the top. The top piece is REALLY expensive like over $100 I believe. It has a metal bracket on it that slides over the top of the hatch glass before its set in. To change either correclty the glass has to be removed. Make sure it doesn't get broken in the process.