If I remember it, I think the shroud has a lip the hooks onto the top radiator support. You have to push the shroud in and then up. It is a pain in the butt to get the shroud out. I am actually going to replace the D/S fan this weekend. I replaced the P/S in this past Fall. So, I suggest doing both at the same time b/c the other one will fail soon enough.
1969 RS/SS Camaro Conv. L-89 Alum. Head 396 375HP 4-spd
1987 GNX #419, 2002 RX300
FS: 1934 Ford Street Rod, Blown 383 $48,500 Firm