Guys, I have a 70 Satellite that I want to put disc brakes on..I fella here on moparts emailed me with a set of 73-76 B-body spindles and I was wondering what the difference is between these spindles and what would have come on my car if originally equipped with disc brakes from the factory? Are the spindles taller? Shorter? Usable with no problems? I have read a lot of the disc-o-tech and online forums pertaining to the swap but wanted to know specifically what you all thought?