| quote | Originally posted by JRP3: Is the 3rd gen longer than the 4th gen? How much does the glass weigh? How much longer is the fastback lid, maybe a small extension to the notch deck would make it work? |
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The fastback rear is probably about 3" longer at the rear. The Notchie tail lights and decklid angle forward vs. the fast back going pretty much straight up from the bumper belt line.
Yes, the 3rd gen is quite a bit longer and doesn't fit the notch back lines quite as well. Bubbajoes car has a 12" stretch and with it the 3rd gen hatch just barely fits, and you can see how much of the side panels needed to be removed to get the glass back to the roof line:

The glass portion extends several inches into the flat deck lid part... Here you can see the bolt hole locations that sandwich the end of the decklid to the hatch glass.

I think an unstretched chassis will be atleast 4" too short to use the 3rd gen glass.
These hatch glass panels are HEAVY... probably in the 50 to 75 lbs range.