Any parts that fail to meet high quality requirements of the vehicle manufacturer are replaced. In In the case of recall campaigns we also install improved spare parts whereas the faulty part is no longer used. All standard wear and tear parts (e.g. synchronizers, sleeve bearings, bushings, lubrication pumps, thrust washers and certain gears) are replaced with new OE quality parts, i.e. of a quality comparable to that of the original components. Next, the gearbox is assembled ready for installation in accordance with specifications of the manufacturer. We use only top quality parts.