ah, the ol, how to measure axles and get em right the first time trick...
Best to call whoever you are getting the axles from and give them ALL the details,
are those measurements flange to flange or housing end to housing end, I mean is the rear ends assembled with the stock axles in, or you have no axles at all and just a bare housing?
the guy at strange, I think Jim is his name, is very helpful,