Window parts

Hello, I'm looking for some help on fixing two windows that I have. One window has a pivot bar that snapped due to rust. I can still open and close this window, but cannot tilt it as the one side of the window sash will come out. The second window has both pivot bars rusted through, so the window cannot stay open and when the tilt latches are open the window sash pops out. I'm trying to fix this myself. To fix this I think all I need are (3) of the correct pivot bars, some pivot lock shoes and the charging tool for tilt windows. The problem is I don't know which part to buy and my windows didn't seem to have any identifier part numbers. Another problem is I'm having a hard time trying to removed the rusted pivot bar from the window sash and the pivot lock shoe. Are there any methods or tricks I can use to remove it? Any help is very much appreciated. Respectfully, John

Paul, thank you for getting back to me.

As for the pivot bar, it looks like the existing pivot bar has two screws that hold it in place. With that said should I order the 26-068 pivot bar or get both the 26-068 and 26-040 to see what fits better?

Respectfully,

John