Have you thought about using a Ford np205. You can swap in a 32 spline input and it will be a lot stronger. The low range is not as good but i think the torque of that 6.0 will make up for that. I think you will end up blowing up that 241.
I think you could get a Ford 205 for @ $100.00 and the input it $189.00
i'm sure you needed anopther opinion on your build.