ACDelco 36G0139 Professional Steering Gear without Pitman Arm, Remanufactured Gear housings are bead blasted, thoroughly washed, closely inspected, and rust-proofed prior to assembly to minimize corrosion Multiple cleaning and washing stations, with regular contamination audits, for every component inside the rack and pinion minimize internal contamination and increase part service life All seals and O-rings are replaced with 100% new parts to extend the life of the product, helping to guarantee reliability Sealing surfaces are restored and polished to maximize sealing and help ensure long service life Recirculating bearings are replaced with new and matched sets to provide correct steering feel and performance