68 barracuda window regulator mecanisms

Are you talking quarter windows? If so those things were very poorly designed from factory.. I have some pictures in my gallery (posted in signature "motortopia" site) that might help.. I had to replace my rear quarter panel so there are some open shots of the whole assembly and sure I have some more I didn't post so if you want more pics just let me know.. Not too sure about the doors windows, kind of hard to get pictures of those ones.. Hope it helps a little!