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The Prothane rear frame shackle bushings for 1988–1998 GM 2WD and 4WD applications are direct replacements intended to support rear spring shackles and preserve suspension geometry across both driveline types. Supplied in red for quick visual identification, they serve as vehicle-specific service parts for late-’80s to late-’90s GM trucks and SUVs. Their direct-fit design addresses 2WD and 4WD rear shackle requirements.
Prothane 88-98 GM 2/4wd Rear Frame Shackle Bushings - Red
