ok,, I'm gonna flood you with numbers here
the clip pins, or in your case clip screws for your rear window _good mark_
http://www.goodmarkindustries.com/grphx/Hardware/HWB2092.JPGare located 3/8" off the ledge . now starting at the rear fliller panel and qtr seam on the right side measure up the sail panel, across the roof, down the left sail and back across the filler panel. the seam is 0 first pin at 4-1/2", 9, 14-1/2, 18, 23, 28-1/4, 34-1/4, 41-1/2, 48-5/8, 53-7/8, 58-1/2, 62, 68-1/4, 73-1/4, 79-1/4,
84-1/2, 92-1/4, 99-1/2, 104, 110-1/2, 117-3/4,and 123-1/4 good luck