before i install bow type headliner in to my 69 chevelle i look up videos on YouTube and most of them saying to remove both windshields, in this video you can see i did the swap with only one rear windshield out and NO, you don't need them out at all ! easy and possible do the swap with all windows in if you using smaller paper clips like 3/4 of the inch wide for easy fit in between glass and subframe of the headliner. yes it takes just one handy man.
![](https://s2.save4k.ru/pic/nbmDL8v_7SM/maxresdefault.jpg)