I installed a narrowed IFS from a '79 on my AD, it was an easy swap and the price was right (free). While it is true that the 63-87 units are wider, I had 1.5" removed from the crossmember & center linkage. Everything was pretty much bolt-in after that. Many might say that removing 1.5" will not make too much of a difference, but you can use wheels with enough offset to compensate for that. In addition to the link Tabdoo provided, look here and look at the post from Joe Way. As far as the rear is concerned I used a Chevy II and had the front rotors redrilled to match.
Good luck with your project which ever route you decide to take!


Robert C.
If it's true what they say, "You learn from your mistakes,"
I'm a Genius in the making.

1950 3600