I am converting to Disc Brakes for 1972 Dodge Dart , it has 9 inch Brake drums and the Disc Brakes supplier tells me i have to install 10 inch Spindles, my question is , do i have to replace the Upper Control Arms and Lower Ball joints when i install the 10 inch spindles ???
Let's start with "what are you using" for the conversion. You going with factory 73/ later discs, or is this some conversion aftermarket like Thunderbird or whatever?