I am trying to replace the spring balance and pivot block shoe for 3 single hung tilt-in windows. They are Atrium brand windows (or so I am told -- I cannot find a label). The tilt windows are 33" wide by 34-5/8" tall. The shoes appear to be open on both sides and are approximately 1-1/4" wide at the base. I appreciate any help that you can provide.
Thanks
Glenn