Disc brake conversion

Look here
http://www.bigblockdart.com/tech/diskconversion.shtml

and here
http://www.bigblockdart.com/tech/spindles.shtml

I used M-body spindles from an '85 Fifth Ave. I have no alignment problems and no bump steer issues.

And here's a link with Moog part numbers for ball joints, tie rods and bushings.
http://www.bigblockdart.com/tech/partnumbers/index.shtml