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The Prothane rear frame shackle bushings with 1.75-inch outer diameter for 1973–1987 GM vehicles are direct replacement bushings intended to keep spring positioning and rear suspension alignment intact. Supplied in red for easy identification, these parts serve as practical service components for owners working on compatible GM rear shackles. They are sized to fit 1.75-inch OD rear shackle mounts on 1973–1987 GM models.
Prothane 73-87 GM Rear 1.75in OD Frame Shackle Bushings - Red
