Need a rear end under 67.5" wide

I'm looking for a solid axle for my Armada. Does anyone know of a stock length rear end that measures 67.5" or less from rotor to rotor? I have a friend with an 04 chevy rear end that is 68.5 that I will probably use, but just thought I'd check to see if there's one out there that's narrower so I don't have to narrow it. Thanks in advance.