Tincup's 63 Dart w/5.7 Hemi

also a ford 9 inch has a bearing in the pinion area that robbs horse power,,, but i agree 9 inch stuff is all over the place,,,and a C body 8 3/4 to cut down are not that easy to find these days,,,

if your certain on your rear gear ratio the dana would be the way to go,,,just my .02 cents