'73 up drum to disc conversion track width change

No they will not be in the same spot. That is what Kern Dog is telling you. They will stick out a little bit more.
his reply was a bit confusing, because I asked if the drum brake track width changed in '73 to match the discs, as I thought the drum brakes were also redesigned (essentially the B body design adapted to the A's)...if you look at my duster the front tires are quite close to the outer edge of the fender already, wasn't sure if they were going to be pushed out even more with the discs.