i have replaced my power steering pump 3 times. i flushed my system on the first incident, my wife took the truck mudding and got it stuck till i could get a wheel loader to lift it up and break the suction. thinking that i may have silting in my gear box and wondering if anyone has rebuilt a gearbox.New to the Nation but i've owned my 2005 PSD for awhile. i have some mods completed and plans to do ALOT more! currently looking for some insight on an issue with my Steering gearbox.