Huge difference in wheel well room between a Charger and a Dart. Back in the early-70s I owned both a '70 Charger and a '69 Dart 340 Swinger. I had L60-15 tires on back of my '70 Charger and they fit great and looked outstanding. Not a prayer of ever trying to fit that size tire in the smaller space available on my '69 Dart.