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The Prothane rear frame shackle bushings with 1.5-inch outer diameter for 1973–1987 GM vehicles are direct replacement components designed to preserve spring alignment and rear suspension fit. Finished in black for a low-key appearance, they serve as serviceable parts when refreshing or repairing rear shackle mounts. They match 1.5-inch OD rear shackle applications on 1973–1987 GM models.
Prothane 73-87 GM Rear 1.5in OD Frame Shackle Bushings - Black
