2004 rear brake issue
 

Howdy all, i have just had to change the rear brakes on my 2004 Rodeo. everything came off and back on with no issue......until
I re-set the rear brakes and took the vehicle out for a test drive before giving it back to my wife. the pedal was a little softer than normal and i seem to have zero E-brake.
i noticed i had a bit of brake fluid on the ground, when i pulled it back into the garage to see where, i pulled the tire and see one side of the brake cylinder has blown out. i did verify the hand brake cables are connected.
this peculiar model seems to have the cylinder cast into the backing plate. i have searched ya ole google for a replacement but am coming up with no results and everywhere seems to show this as two components.
has anyone run into this?