Hi,
Yes I have two different Np833s, both cast iron, one 2wd 27 spline and the other 4wd 32 spline.
I sold the NP205 and went drivers side drop (to match my dana 44 axle from a van). I did not notch the housing. I have a NP241 IFS tcase now 32 spline input.
The van originally had a 833...