I don't have bumper guards front or rear but I don't see how they would fit on the front any how. The bumper is very close to the body and the front grill/headlights come to almost the depth as the bumper.
Bumper guards were optional for the front, for the rear or both for the 65 Valiant/Barracuda and Dart. My 65 Dart convert has both front and rear. The 65 Valiant 'vert I parted out had them on the rear only. That bumper & the guards are now destined for my 65 Dart wagon.
