For a description of the rear caliper's function, see here:
The parking brake mechanism is internal to the caliper, and is protected by
a snap ring deep inside.
The external part consists of the spring, lever, and parking brake cable.
The cables are replaceable, and are detached at the clevis.
What's wrong that prompted you to post this question? If the lever is
seized or swings freely, the only real practical solution is a
remanufactured replacement caliper.
Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here.
All logos and trade names are the property of their respective owners.