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The Prothane rear frame shackle bushings with 1.5-inch outer diameter for 1973–1987 GM vehicles are direct replacement shackle bushings intended to maintain spring positioning and rear suspension geometry. Supplied in red for easy selection, they act as straightforward service parts for owners replacing worn rear shackles on compatible GM models. These bushings are sized for 1.5-inch OD rear shackle applications from 1973–1987.
Prothane 73-87 GM Rear 1.5in OD Frame Shackle Bushings - Red
