15x4.5 2.5 bs
Same size wheel but a 165/75/15 on my 64 Dart.
Had to clearance the front of the fender just a bit by adjusting the fender strut.
69 should have room with a 205/70/15. I ran that size on my 67 and 68 Darts on the front with a 7'' wide wheel no issues.