924S aluminum rear arms?

[Pillow]

Does anyone know the offset/spacing of the 924S aluminum rear arms?

I just got a set today and have no reference on the part number (as in Superman's tech article) as to how wide it will be...? The arm part numbers are:
951.331.514 1R
951.331.513 1R

I really just intended to get simple steel arms, but I F'ed up in a good way I guess...? I now get to run T4 CVs instead of T1 and have to run SAW axles and get Thing output shafts... GREAT MORE $$$ in something I wanted to do simply! Take note Vujade nothing is simple!