Step 6, Installing Rear headliner
Begin by making sure the rear interior quarter panels are pulled away from the B pillars, an assistant makes this easier. Fold the seats forward and stick the driver side of the rear liner in between the interior panel and the roof, Push it over as much as you can without damage and then slip the passenger side on top of the interior panel, support the center of the liner and hook the center loop on the hook on the roof, it should make a solid click when fully engaged.
Use a flash light to be sure the liner is hooked on the roof bracket.
Check both sides that the board lines up flush with the roof , you should not have any overlap, it should look like so. Then spray a bit of glue on the door seal flange and the liner.
Start in the middle of the curve and cut the excess material with three cuts like so until you get to the fiberglass.
Fold the material over and clamp it on, Let the glue dry while you go to the other side of the car and do the same.
On the inside go ahead and screw the trim screw down to lock it in place.
Trim the excess just after it wraps around the fiberglass, Dont cut too much but you dont want to see extra material after you replace the inner door seal back over it.