2000 Dodge Caravan rear brakes

You'll need to machine or replace the drums.
There area series of springs that need to be removed. Some are hold down springs others are return springs. There is an adjuster that needs to be reomoved, separated cleaned and lubed before re-installing. On the backing plate there are raised areas that the shoes set and slide on, these needs to be cleaned and lubed. May want to pick up a manual:http://www.2carpros.com/kpages/auto_repair_manuals.htm