I am wondering if anyone else has broke a rocker housing? While grading, I backed into a sand embankment and the whole back side and top of the rocker housing just snapped off, it broke right down the center of the hydraulic fill opening, all the way down to the transmission!! This is a new tractor and I have had several problems with it. It is a john deere, 4300 Hydro, supposedly a 2000 model year or later. I am wondering if there are any defects listed with the rocker valve housing? Any info would be greatly appreciated, Thanks, Butch