CARDONE Remanufactured Rack & Pinions are re-engineered, built and tested to meet or exceed O.E. fit and performance. 100% new, O.E.-style o-rings and seals are installed to ensure leak-free, long-lasting performance. A final protective coating is applied and each unit is tested to guarantee a perfect fit and function. Units undergo full hydraulic testing for proper flow, leakage and performance to ensure perfect fit and function (where applicable). Valve housings have polished micro-finish sleeves for durability (where applicable)