Steering Gear Fits 1977 to 1979 GM 4WD;13-16:1 ratio;3/4x30 input shaft;Large 3.125 piston diameter;sae/inverted flare ports;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 Steering Gear - SG441S SG441S Steering Box
