I used the 1973 to 1976 Duster and Demon, Dart Sport entire front brakes and A arms and lower control arms and spindles on my 1971 Duster, everything bolts in except the later brake lines. I ended up using some later model (1980 or so)Dodge 1500, 2500 Ram Van front lines
I did use the right spindle on the left side and vise a versa
That mounts the brake calipers behind te spindles, moves the weight back and makes using the later Van lines easier
The early B body 8 3/4, Pre 1970, are about two inches wider than the A bodys are