Ahhgg! This thing is gonna drive me to drink. Went to back out of the garage, no reverse again. Disconnect the valve control rod and the spool functions as it should, so does the direction lever, control arm, and travel control pedal. Now I'm thinking it may have something to do with the balljoint or the valve control rod. When these units are connected I can get forward and the spool is pulled out like it should be. In reverse however it won't push the spool in no matter where I adjust it. ???