I don't think it would be worth the time spent. I think the front bumper only weighs about 20 lbs ?? I had it off to remove the bumperettes, and it seemed pretty light. No reinforcement behind it at all. Not sure what a fiberglass bumper would weigh, but if I saved 12 lbs, I just don't think it would be worth the time and money spent. Maybe a 1x8 pine board??? I've done that before... LOL We'll leave the chrome front on this year...