I'm in the rust belt. Rear emergency brake calipers do not return to released position. Is it worth rebuilding the rear calipers?

Thanks

 

For the price points on that part, it is a better choice to find a company that offers a rebuilt unit.
Reasons:
You will know it is rebuilt professionally (look for the supplier's name and reputation in the industry for this reason)
All worn parts are replaced.
You get a warranty.
You don't need to but additional tools for the job.

Because in my situation we have 3 large suppliers of wholesale auto parts and many auto dealerships offer a line of rebuilt parts we seldom in the service shop rebuild any customers calipers anymore for most of the reasons I pointed out.

 

Thanks for the quick response. Cheers