75' Duster Wheel/Rim combo question

I know for a fact the rear will fit. A 275-60-15 will fit with no mods. Tried a 235-60-15 on the front of my Duster but they were too close to the rear of the front fender for me. Ended up with 215-60-15. Wanted a 225-60-15 but could not find it at the right price. No rubbing though. Even with the 235-60-15.