Dave Sr. from SWISCO responded:
February 15, 2017
I'm not sure what to recommend based on your information. A very important detail is the link arm, which is obscured in your photos. I've made a list of possible replacement parts on the right side of this page that may be worth considering. The body style and dimensions seem to match the two operators you show, so you just need to see which link arms are a better fit.
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Paul from SWISCO responded:
March 7, 2017
Thank you for your patience in this matter. Based on your photos and dimensions, the one operator with two top holes would be the 39-075 and the single top hole would be the 39-277, which you chose. I think those could work. The distance between the top hole and bottom hole is closer to 5-1/4" than 5-1/8".
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