Working on more info for Nissans:
The spindles for a 1983-1997 are the same,
The brake calipers for 1983-1997 are the same (except with V6),
The wheel bearings for 1983-2004 are the same(except 98+ V6)
I am going to mock up rotors, pads, and calipers, this weekend to see how they work for the 83-86 and 98+ trucks, I will let you know as soon as I do