Rusted Spiral Pivot Shoe

It looks like your pivot shoe, balance, spiral and probably even the pivot bar are all rusty. You might want to change all of them. 

For the pivot shoe, please compare the width and thickness to our 15-046. This is very popular with residential vinyl windows. The balance should have a 5/8" diameter tube, which would match our Series 600. May want to confirm. I also think our 26-040 pivot bar will be a good option. 

Look this hardware over and let me know if you have any questions.