1950 chrylser rear drum

Has the front been switched to disc brakes?? am going to guess no. Maybe it would be advantageous to convert all four corners to a 4 1/2 in bolt pattern using Ford or Mopar stock parts. Perhaps the 75-80 Granada / Monarch / Versailles setup front and rear could be modified and used. many of the Granada / Monarchs used a leaf sprung 8 in rear axle. Or perhaps the 73-78 LTD / Marquis?? What about Furys, Gran Furys, Newports or Monacos in the 69 - 81 time frame??