1966 I6 Mustang convertible- rear brake shoes/drum

[bandit1]

I tried putting my 2 1/4" new brake shoes and drum on the rear backing plate. It didn't work. The shoes went on, but they did not sit out far enough to connect them to the anchor pin. The drum went on, but not far enough. I looked at the front backing plate and saw that there is an offset to accomodate the 3/4" difference between the 1 1/2" (rear) and the 2 1/4" (front).

So I take that to mean that the correct rear shoes are 1 1/2" (unless of course someone previously changed the rear backing plate). Maybe my car was not part of the those that got the 2 1/4". I just wonder why I see so many publications listing the 2 1/4" as correct for the '66 I6 Convertible.

BACKING PLATE (Front):


BACKING PLATE (Rear):

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1966 MUSTANG Convertible (I6,Sprint 200,3.3L,120HP,Original owner) (C-4 Auto rebuilt,Autolite 1100 carb) (Power steering,manual drum brakes: F&R 9") (Factory single exhaust,7.25" rear,2.83 ratio,P205/75R14 tires) (White power top,Candy Apple Red exterior,Red interior).