fat man fabrications has 2 inch dropped spindles. they're 3/8ths of an inch taller for the upper ball joint but after much debate i do not believe that this is an issue. dave, you might have another opinion but the main point i was told on why it would not be a big deal is because the race cars enjoy the height change as well because of better handling conditions. here is a post to explain it a bit i believe.
http://www.bigblockdart.com/tech/spindles.shtml that is for the stock f, m, and j body cars i think, so it does not specifically argue the point of fat man fab's spindle's. however, here is the link to their website and if you scroll down to the bottom they claim they are specifically for volare/cordoba front ends which are included in the discussion on the bigblockdart website.
http://www.fatmanfab.com/06page17.htm whadda ya guys think?