i use a Hancook or Kumho 185/80R15 on my 68 Satellite . I have also fitted these on an Aust Valiant - similar/same as a 67-69 Dart Neither have had clearance issues . I use a 4" rim the Valiant a 6" rim
Tex
New best ET 10.259@129.65 . New best MPH 130.32 Finally fitted a solid cam, stepped it up a bit more 3690lbs through the mufflers New World block 3780lbs 10.278@130.80 . Wowser 10.253@130.24 footbraking from 1500rpm Power by Tex's Automotive