Yes, your guides are worn but I'm not sure where to get replacements. I got a set out of a junkyard from a newer stang. Another big problem with the early stangs is the absence of a regulator spring. There is a recall on this:
#91195 SEP 91 Power Window Regulator Counterbalance Spring
This is a helper spring that helps the window up. Early cars were not equipped with this which causes difficult closing of the window. I replaced the ones in my 84 Ttop car with 89 units. Works great!
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Factory Five Roadster Build
Yellow T-roofed 84GT
(In users rides)&
20th Anniversary GT350 ragtop