Have replaced all rear brake components and now seem to get squealing from rear brake shoes. Any suggestions on a cure? Seem to be able to hear it right before you come to a stop.

How many miles have you put on since replacing?

Have you gone back and double checked everything is installed and adjusted properly?

 

You could try taking them off and sanding, filing or someway removing the burnt layer of the shoes. You most likely have overheated the rears by pulling the E-brake up and locking in all that heat after a spirited drive. Unless you are on a hill I suggest not using the E-brake.

Don't overlook the backing plate maybe rubbing on the drum.  The bottom edge tends to get bent.  More of a grindy squeal.