Thanks for the advice, RivNut. I found an illustration in the 1983 Fisher Body Manual that shows the entire window system as a single unit with only three attaching bolts. Two bolts are right at the top, and one straight down at the bottom, which needed the socket taped on. The whole job to pull one side was under ten minutes. Attached is a photo of the window unit with glass (on the bottom), guide panel, and motor. When ASC did the convertible conversion, they apparently designed the rear windows as a simple drop-in installation package. Very, very nice, just pull the whole thing out, put it on a bench, and make any repairs. That design sure beats the wrist-bending and knuckle-busting that other window repairs often require.