Adjust both parking shoes at the wheels first by removing a lug, looking in the hole with a light to find the adjuster / star wheel. I usually tighten the star wheel tight to the point of not being able to turn the wheel then loosen the star four notches/teeth. Road test the car to be certain none of the wheels overheat from the brake being too tight. Then only if necessary, adjust the equalizer bar.

Good luck!!!

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"Rudeness is a weak man's imitation of strength" - Eric Hoffer