These pictures are from an ’84 factory service manual (FSM) and is slightly different.
The “S” hook is not shown very well in the above picture (nothing with Aspen 500 – but the manual itself) for is kinda hidden by the Park Brake Petal.
The Pictures don’t show the transmission tail housing which is also a missing part of the whole scheme of things.
This is not from the year you are looking for – but may help you out.
Trying to figure out a park brake cable system without having a car to look at can lead to less hair on one’s head.
BudW