Beetle and Karmann Ghia Convertible Top Technical Tips When replacing your Volkswagen Convertible Top, it’s a good time to replace the following items as needed: Side Tension Cables, Rear Tension Cable, Side Window Frame to Top Seals, Header Seals, Rear Window Seal, Top Pad, and Headliner. Even if your tension wires aren’t broken, we strongly suggest replacing them to prevent breakage during or shortly after installation. Remember to check your Wood Bows. Karmann Ghia Note: The convertible top for 1967-1969 will also fit your 1969-1974 Karmann Ghia. The difference is that the 1967-1969 has a plastic window. If your glass window is missing you may not want to incur the expense of a replacement. A good alternative would be the 1967-1969 plastic window top. Air Cooled VW Convertible Window Restoration Tip Tech Note for VW Bug & Karmann Ghia If you have a 1/2” gap or more near the center of your windshield where it meets the top, then your header bow is probably warped and needs replacement. Tech Note for VW Bug Only If your rear window no longer fits tightly inside its frame, check to see if the window insert has deteriorated and needs replacement. Bow, Above Rear Window, Wood or Synthetic. Cabriolet Top Cover with Half Moon Plastic Window, Canvas.