According to Moparts.com ( http://www.moparts.com/Tech/tech/pages/b-ebody.html ) all you have to do suspension wise to convert a 62-65 B-Body from drum to discs is change the spindle to a later disc B-Body, then do the master cylinder, proportioning valve, etc. You don't need to change any control arms. Is this correct? Bill M 65 Coronet 500 'vert