1966 valiant rear brake shoe removal?

There is a tool that fits in the hold-down spring, to make things easy, but the right sized blade screwdriver can work .
Here's a pic of the spring 1965 Plymouth Valiant Brake Hold Down Spring | TheWrenchMonkey Auto Parts Canada

Pic of tool . K-D TOOLS 297 BRAKE SHOE RETAINING SPRING TOOL . | eBay