Posted earlier 4010 steering prob. Went clear through steering valve replacing ALL seals/o-rings, found no prob other than wrong size unloading valve ball. (Orig was 3/8" dia. book calls for 5/16") No expert but have successfully done about 10 over the years with this being first one not to work. I&T manual setting for press and ret valves is Return valves-.003, press, .001 which I've always used. My Deere manual says "upper left, .003, lower left.002, upper and lower right valves set at .001" which I assumed was a misprint. Upper left and lower right being return valves. Your thoughts? Thanks, john