Agree they should fit and you will like them a lot better than the front drums.

A word on the residual valves. A residual valve should not be used with discs. It will cause them to drag and heat up.

The valve is optional with drums. New drum wheel cylinders do not need the residual pressure... though it may help keep "slack" out of the system. Often, not always, drum master cylinders will incorporate the valve. If you run a new universal "disc or drum" master it will not have the valve. If you run a replacement master for a front disc/rear drum car it may already have the valve.

A prop valve on the rear is a good idea.