Hi Kevin, Best of my knowledge, there is NO factory bolt-on that works without serious modifications and loss of turning radius and inability to align properly. Of course this is not to say that someone with the time and desire could not maybe figure SOMETHING out... I recently found out that 71 Imperials had a bolt-on conversion for 1960-1961 long wheelbase Chryslers, and almost by accident ! The easiest / cheapest way to go THAT I KNOW OF would be to install 1962 spindles and steering arms ( from a 62 SWB Chrysler ) and then use a conversion kit from AAJ or Stainless Steel Brake. Of course, it can be argued that the 63-64 brakes are eminently superior to the earlier center-plane units....and should be left alone... I have switched a couple-three 62 Chrysler 300's over to 1963 brakes and the owners have been completely satisfied. John ----- Original Message ----- From: "kevin adams" <kmotion45@xxxx> > For 64 300 is there a factory bolt on for this car > i.e. 78 -79 fury etc. In order to get the proper > geometry on the front suspension must the after market > kit be used? I've done brakes om my 62 polara using > a mix of a-body and b-body parts and it works pretty > low dollar. Any comments? >