Brake Pedal Return Spring Question.

[Jeffs70]

I have a 70 C10 that I am putting all back together to get running soon. well I crawled under the dash to put a new push rod in and I noticed one end of the spring does not have a hook to put any place. do I have a screwed up spring and need to replace it also where does it attach to? I can not find any place it attaches or any diagrams on the net, even have searched threads on here and no information. any help is appreciated thanks