I used:
A153 Front Disc Brake Conversion Kit, Mopar Non Power
on my '71 Dart GT. They offer 5 on 4" or 5" on 4 1/2" bolt pattern options. I stuck with the small bolt pattern front and (factory installed 8 3/4") rear.
FYI the factory 14" X 5 1/2" Rallye wheels fit just fine. However, the factory 14" X 5 1/2" Steel wheels
DID NOT fit on my car.
View attachment 1715975101
In the picture, the rear wheels are 15" X 7" WheelVintiques Rallyes.