These Schumacher Racing Products rear hub carriers are the factory replacement uprights for the Cat PB 4x4 buggy platform. Sold as a pair, they house the rear axle bearings and provide the mounting points for suspension arms. Replacing worn or damaged hub carriers restores proper rear-end geometry and bearing alignment. Features: Sold as a pair Designed for the Schumacher Cat PB 4x4 platform Accepts rear axle bearings Includes suspension arm mounting tabs 7/7/26 cs