I have a 1976 sedan deville Cadillac and it will not
shift gears and back rear brakes are lock what do I
do to unlock the back rear..
You likely have to get the transmission and brake system serviced.
Are you sure the E-Brake is releasing?
I had assumed that the car was running, but the transmission wasn't shifting properly. I also assumed that the brakes were locking up while driving. This is a 1976-1977 car and a LOT of things can cause this behavior, including a sticking emergency brake.
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