they are from AAR fiberglass and I dont think they have different versions, so if I remember right they are for all dusters, darts etc. the guy that did the body work on the car took the rear bumper absorbers off and he fabricated a bracket to attache the bumper too on the front I think it just bolted on the same way as the original bumper but he drilled a hole bled the pressure out and then welded them colapsed, burntorange70 had mentioned, It wont work for the rear bumper though as it will protude to far out to do it that way. thanks for the compliments.