Thats what I do when my rear end starts making strange noises!!!

Sorry I had to do that. Welcome to the board. I would suggest having a shop look at the rear axle seal. I had that issue and had to replace it twice. I blame the mechanic not the vehicle as it is a basic part found in most all vehcles. They also told me I needed a fluid change as it had never been done. As I had just recently done it I asked if they checked it or were just basing it on miles. They said they checked I asked to see it. We went out and sure enough clean as new. They were a tad embarressed