I have a NP-435 mated to an early bronco D20. The 435 was taken out of a driving truck, it has the 6.69:1 granny gear. The D20 was rebuilt by the previous owner, I do not have a t-case shifter. I machined the adapter plates. I have this set-up in my YJ. I machined a T-176 bellhousing and made a bracket for th CPS for my 4.0L. I made a tube crossmember to mount the set-up. The clutch uses a CJ slave cyl.
I am selling everything ready to bolt into a YJ (BH with CPS mount, tranny, t-case, adapter, crossmember, and clutch slave) for $750obo. Advanced, Novak, wildhorses have adapters for $400-$500. You will need to buy an AMC to Ford pilot bushing from AA for under $20. This would also work for an Early Bronco. Located in Somersworth NH.