drum to disk brake conversion question

Thank you for the information. I really apreciate you taking the time. I'll go look for a 73 A body car "MOPAR" and take spindles, brakes, splash shields and I think the upper and lower control arms if thats what you ment.
When you say FMJ and all the other acronyms, what do they mean? I know that BBP means Big Bolt Pattern but thats about it.

You dont need lower control arms just upper. If no luck finding donor car id get a hold of Cass from dr. Differential his kits are well priced