Narrowed 8 3/4 questions

Ok.

72blunblu gave me the "ah ha" which many of you may find funny. I did not know that the drum braking surface must match because it keeps the shoe from cocking essentially locking up the rear brakes. IE the shoe has no lateral stability. I was thinking...11" backing/11" braking surface....done...not the case.

Ill get to taking this apart and identifying.