Hi everyone. I let all of the gas out of my bumper frame horns so I could push them all the way in. Had to cut a little rubber from the rubber end caps and drill new holes in the body at end of rubber caps. Probably set the bumper back a good 2 1/2 to 3 inches. This 78 now looks a lot better with the stock bumper. Motorsport only has fiberglass bumpers for 240 and 260 and they sain will not adapt to my 78.. Oh well..