Conversion Ram Assist Steering Box Fits 2003 to 2008 Dodge Ram 2500 and 3500;Tested for proper flow balance;Components are inspected for wear, and are magnafluxed to find cracks that are not normally visible;O.E. spool valves are completely dis-assembled, inspected, modified with proper T-bar, reassembled and tested for proper flow balance PSC Steering PSC Steering Conversion Ram Assist Steering Box - SG853R-1 SG853R-1 Steering Box