Against my better judgement the other day I decided to back my Jon boat in the lake on a beach with no ramp. Anyway I hit a hole and the rear pass side of my fj went down and I ended up siting on an angle with the rear pass side the lowest and my passenger side slider on the sand in three feet of water. The entire rear diff was submerged and the cabin filled with about four inches of water mostly in the passenger side back seat area. I've already drained and changed the the oil in the diff and done the scuba mod (learned the hard way I guess). All the electronics are fine but water got al the way up to underneath the back seat, should I just let it all dry and don't worry about it or do I need to do anything else?