Pivot bar

Your pivot bar looks to be a match for either our 26-398 or 26-405, depending on hole placement. Review the dimensions we show in each case to confirm the best option and let me know if you had any further questions.

That does look to be about 1-3/16". We unfortunately don't sell a pivot bar in this style with that kind of hole spacing. 

You may need to rely on the second hole in the pivot bar for installation. I would advise getting an undamaged version to use as a reference, you probably won't get an accurate read out of this broken piece.