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The Prothane rear frame shackle bushings with 1.75-inch outer diameter for 1973–1987 GM vehicles are direct replacement components designed to maintain spring alignment and rear suspension fit. Finished in black for a subdued look, they serve as service parts when replacing worn rear shackles on compatible GM models. These bushings are matched to 1.75-inch OD rear shackle applications from 1973–1987.
Prothane 73-87 GM Rear 1.75in OD Frame Shackle Bushings - Black
