Cardone 22-179 Remanufactured Domestic Power Rack and Pinion Unit 100 percent computerized hydraulic testing is implemented for proper flow, leakage and performance to ensure perfect fit and function Rack and Pinion units feature all new seals and O-rings In cases where sleeves are installed, CARDONE utilizes a special quad-bond process to ensure sleeves will never shift Racks are surfaced to precise specifications to prevent leaking between chambers and extend unit life Every unit 100 percent tested for quality and reliability