Hi,
I see the recommendation for replacement of Stanley 4405-R is your block
23-407. Can you tell me if the top (picture attached) and bottom pivot pins I have today in the old Stanley blocks will fit in that
23-407 block? They do look to be about 7/16" diameter, but they're six-sided, not round.
Or do I need to start over with all new hardware - the blocks, pivots, bottom track and top brackets?
Thank you.