Nikon 35-70mm f/2.8 AF-D Macro - fully disassembled, I was able to fix what was causing the zoom and focus to not be smooth, however, I was not able to reassemble it (I like fixing Canon gear much more)
I sometimes fix Nikon lenses and, yes, yuck to reassemble. You have to get all the gears and such correctly aligned in the correct order or it won't go back together. Very, very troublesome.
I'm glad someone else feels my pain. I've fixed 4 or 5 other Nikon lenses, but this thing just killed me, with it's double-screw front-extending macro mechanism. I've sought resources for repair manuals high and low with no success, not even Nikon's tech line could access the resource (let alone provide me with one).