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The Prothane rear upper coil spring isolator is a red replacement part for 1991–1996 GM rear applications. It fits the upper spring mounting location and is intended to replace worn or missing factory isolators. This isolator restores the upper spring interface, helping maintain proper spring seating and providing a direct replacement tailored to the listed GM rear setups.
Prothane 91-96 GM Rear Upper Coil Spring Isolator - Red
