Good Day All! I bought an old Grasshopper 225 serial 5045813 year is a 2000, with rear axle seal popped out. So, I'm going to replace both sides and can't seem to find what to tighten the rear axle nut that holds the tapered hub with the disk brake on. It's a 1-inch fine thread nut but I really don't think torque it to around 400 ft lbs is right.