Typical window regulator issue?

[Rustyrodknocker]

I recently purchased a 70 Polara with a known manual window regulator issue. The previous owners had it up to about 4" from all the way up and taped the rest to keep critters out. I had figured i could get it to stay up by some means quickly as it was delivered to my storage and it's not a place to be wrenching on cars..
Any how I accidentally leaned on the glass and it dropped all the way down.. I tried rolling it up and pulling it up and I couldn't get it for the longest time it seemed, in the blistering heat. No engagement at the crank . Finally it came loose and I pulled it all the way up and wedged a small stick to maintain pressure to prevent it from falling..
However I don't like worrying about it coming down and a raccoon or cat moving in. It does have a nice fabric seat..

So the question is, Is there a typical scenario that is common with these regulators?
I have never had this issue with my other fuselage cars..
Im hoping to be able to take the parts I need and get door panels off and fix the regulator in a short time span as to not look like im doing what im doing...

 

[JC68vert300]

It sounds like the plastic piece that holds the track to the window glass may have disintegrated. The track sits on the bottom of the glass. The glass has a hole that lines up with the holes on the track. There is a gasket that wraps around the glass, that is probably toast as well.

 

[JC68vert300]

This is the plastic retainer and gasket I needed to for my 68, I would think it hadn’t changed by 1970

 

[Rustyrodknocker]

This is the plastic retainer and gasket I needed to for my 68, I would think it hadn’t changed by 1970View attachment 728726

Is this new reproduction?

 

[darth_linux]

Is this new reproduction?

Almost certainly is.

 

[JC68vert300]

Is this new reproduction?

Yes. FYI, when you place the 4 prongs of the retainer through the track and glass, you then push the plastic stick like a plunger all the way in to create pressure to hold it in place.