Ok....so small bolt pattern vs big bolt pattern infos !
My '71 Dart GT was born with the small bolt pattern 8 3/4", 3.23:1, sure-grip, 741 rear-end. It also had drum brakes all around (10" spindles up front). With that said, I opted for ssbc-usa.com front disc brake kit. This kit was pricey, but it allowed me to keep my Rallye wheels and to carry only 1 spare tire. I have added 15" X 7" WheelVintiques Rallye wheels on the rear.
As a side note, the factory 14" X 5 1/2"
steel wheels did
NOT fit on my car.