Clip That Holds Window Glass
 

I'm looking for the clip that holds the window glass to the bar that raises up and down in a 90 Mustang. There are two of them on each window and it like folds around the window and snaps in place.
I somehow managed to break mine on a hard launch and right out of the hole the window broke those clips and it fell down.
Anybody know where I can get these or what the correct name of them would even help me out? So far I've asked people at the dealer and they act like I'm crazy, although they're not too bright couldn't even look it up on the schematic for me.
Thanks, any help would be GREATLY appreciated.