A contractor from NC says:
August 2, 2015
I just ordered some shoes and bars to fix an aluminum window. I simply could not figure out how to remove the old ones without bending the channel with a pry bar, so I'm being optimistic of bending it back and it working. There are no cut outs that I can find, nor the manufacturer of the window. There doesn't seem to be enough flex for your spreading tools, either. I have a second window to do, and it would seem that there has to be a way of removing these things. Any suggestions or ideas?
Paul from SWISCO responded:
August 3, 2015
We actually have a video that may help you out. Check it out below.