Bit of an update, time to make it 4wd again. Seeing as all Medium duty transmissions are 2wd, I needed to divorce the stock transfer case to make it work again. I've never torn apart a T-case, but it was fairly straight forward, after I had it back together, I sent it to Big Country Customs to mount it. They have in house CNC plasma technology, so I figured I'd rather them just make the complicated brackets to mount this thing.
Stock input vs Divorced input
The Guts:
Reassembled:
Blurry shot of 1 of the new crossmembers and the small driveshaft between the trans and t-case: