I live in MA had a decent snow storm and my truck got ruined but there's an awful buzzing sound coming from what sounds like the rear end, I kicked away all the built up slush from my tires still hear

Do you have an electric transfer case or anything electrical, like a fuel pump in the area of the noise? You mentioned your "truck got ruined". What do you mean by that statement? buried in the snow? Crashed? Stuck? bumped? Does the sound happen only when driving or does it happen when parked and startinjng it up? Do you go a certain speed before it starts? Could you walk or run beside it to locate the area, or ride in the bed? Could it be from the transmission? Do you have a 4 wheel set up that will automatically cut in if your primary tires are slipping?