brake question

There are 2 new rear wheel cylinders for a Mazda on eBay right now.BJ

buy a hanes manual and do it yourself...if i took my truck to a shop everytime i diddnt know how to do something i wouldent have learned shit in the past 10 years...only take one side apart at a time so you hae refernce..when you put it bak togeather...a sharp punch works good on those screw too