The Buick Grand National Powermaster Brake Booster Good for Core or rebuilding and is a used vintage part and is a brake booster designed specifically for the Buick Grand National model, providing improved braking performance. This product is a being sold as is for parts was removed from an operating vehicle approximately a year ago .That was starting to have intermittent braking issues was functioning but would have occasional pedal Fade, being sold as used NO guarantee for CORE value and for rebuild only as is all sales are final non returnable.
