I purchase two parking brake cables what to I attach them to?Each cable attaches
to the lever that attches to right (rear) shoe. Look at the bottom diagram at the link and you will see the rear brake parts.
When the cable pulls the lever forward there is a spreader bar between the two shoes (the "strut" in the diagram - the parts names are a little hard to read). The spreader bar (strut) forces the forward shoe against the drum (actually both shoes gets forced against the drum by the lever's action).
My guess is that you need the lever and the strut. I'd post a want ad in the Swap Meet.
Tim