Pivot Bar and Coil Balance Spring
The first hole is 1 1/8" from the top (tee) and the holes are 11/16" center to center apart.
The coil balance is 1/2" wide.
Thanks for writing in! We do not have an exact match for the coil balance shoe but I am confident the 15-199 Pivot Shoe will work in its place. It is compatible with the 26-378 Pivot Bar.
You'll need the 1/2" wide S160-09to replace the coil springs. It uses the 15-150S Coil Single Support.
Be sure to look over both of their dimensions to confirm they are the right replacements.