Balancer for Weathershield double hung tilt window

Hello:
My home was built in 1991 with WeatherShield double hung tilt windows.

Note: Attachments refer to a window problem I am having (Total of 6 attachments).

The lower sash balancer is non-functioning.

Note: The lower sash weighs 20lb.

Note: the pivot pin on the sash measures 1/2 " long, 1/4 " wide, 1/8" thick

Attachment: Tilt Shoe part broke off.jpg

This picture shows the tilt shoe with part of shoe broke

Attachment: Pulleys on balancer.jpg

This picture shows the pulleys on the balancer.

Attachment: Balancer 29 inches long.jpg

This picture shows the length of the balancer (29 inches(.

Attachment: Balancer with broken S hook.jpg

This picture shows the broken S hook at the top of the balancer

Attachment: Balancer with 28HD label.jpg

This picture shows the 28HD label on the balancer

Attachment: Sash Pivot Pin.jpg

This picture shows the sash pivot pin( 1/2 " long, 1/4 " wide, 1/8" thick)

Question: Do you have a replacement balancer assembly? If so, what is the price of the assembly?

Thank you.

Another photo.

Casey:

Thank you for the response.

Is it possible to replace the channel balancer with different balancer that would screw in (Instead of being held with an S clip). Also replace the tilt shoe and pivot pin with a different tilt shoe and pivot pin. Thus we could have a different channel balancer, tilt shoe and pivot pin that would replace the current channel balancer, tilt shoe and pivot pin.

I could provide any dimensions that you might need.

Thank you,

Joe