Changed my rear pads and rotors about half a year ago. Recently, I heard this squealing noise from the rear and ignored it for a month. There is now excessive brake dust on the right rear wheel. Taking the wheel out reveals an outer brake pad that is half the size of the inner pad. Does anyone know why this is? If there is one more problem coming on this car I'm gonna sell it!!

And are those lug nuts as hard to remove for you guys as for me? I had to use a 6ft metal water pipe to get enough leverage to loosen those bolts!