All of the Dodge Cummins Diesel Turbos units we refine are Ultra Sonic cleaned and then measured to be within the specs for assembly. Surfaces that require to be refinished/squared are performed on our In House CNC machines. Your unit is completely rebuilt using components that are at or above OEM quality. All of our Dodge Cummins Diesel units are Dual Plane Digitally/Computer balanced to ensure smooth operation and long life!