Schwinn coaster brake (help needed)

[rydr1]

I was cleaning up a 1978 schwinn pixie for my coworker's kid, it was almost ready till the thing did not brake.

I took apart the rear coaster brake assembly and found a spring broken that wraps around the axle.

This is a Shimano Mighty Mite hub.

Can anyone help me find this part or a rebuild kit that would work with this bike?



Thanks