68 fenders are even further out than 67 or 69, they are by themselves. There were lots of differences in the headlight bucket area for all three years. I bought an 11,000 mile 69 Dart from the original little old lady owner and something seemed off on the front. When I got it home I noticed it had a 67 fender on the passenger side, the 69 headlight bezel was off by about an inch, so I am sure visa versa would be the same. I have a pair of each fenders, grilles, and headlight bezels laying around, I need to bolt them all on a spare body I have and see what the real differences are...