What is the size difference between the 73 to a 71-72 Bumper? Whats needed... brackets,and do you need to change over rear valance? Or maybe Ill just stick to the 73 rear bumper with skinny front bumper Thanks....Kirk
70-73 rear bumpers are the same. Some might have holes for the bumper guards aka bumperettes. The 73 rear bumper brackets stick out about 1" farther from the valance. You need to change the lower quarter extensions. This requires filling old holes and drilling new holes