I have a 2003 Cub 3235, less than 400 hrs. I have changed fluids/filters as directed, it's a great machine, I went to Iraq this summer and the wife emails that the tractor stopped not the engine but will not move long story short had a friend look at it and the rear axle housing has a crack (wife doesn't know how it happened)all the fluid came out hence no movement, I thought these series tractors have a heavy duty cast iron rear axle, Anyone had problems with the axle case cracking?