Up date,re-fitted L/h shaft and blade and fitted the retaning nut.drove around for about 2 hours mowing the council grass to test the mower before i take it on a job.nice roar with new blades and both catchers filled up.when my daughter was driving away from me i could here a rumble like a diff noise,so does my diff take oil or is it packed with grease and with my model numbers in post 19462 in this section can some one(bruce)clarify what they mean so i can order some steering parts etc...ken