Needing to upgrade my '71 Dart from 7 1/4 2.76 gears. Looking for a small bolt pattern 8 3/4 rear end complete from drum to drum with 3.23 gears preferably or 3.55. Lower shock mounts and e brake cable would be a huge plus but not necessary. Pretty much looking to just bolt on in place of my old 7 1/4 rear. Thanks!