1950 Chevy 3100 Rear End Width?

[Jamesbb]

I just purchased an Art Morrison frame for my 3100. The truck I purchased had several issues where the previous owner had modified the truck and didn't know what they were doing. The rear end I had measured 62 inches from axle face to axle face. I am going to order a 9 inch ford rear end from Art Morrison also and am having issues with correct dimensions. The frame measures approximately 44 1/4" at the rear end center line. The spec for the rear end housing they sale is 53 1/8" housing only and the axle offset and brake hat thickness adds another 5.375 to make it 58 1/2". That's a 3.5" difference from what i measured. I wish i had measured the outer fender and inner fender widths so I could have an idea if this is going to work. Does anyone know if this rear end is correct or do i need the 62 inch wide rear end? Thanks ahead for the help!