1974 front bumper impact absorber

I am working on a resomod of a 74 Duster (originally 318 with 3 speed floor shifter). The previous owner took much of the front end apart and there are no impact-absorbing mounts for the front bumper. I'm having difficulty even finding anything that would allow me to make a pattern to fab some supports. There are a pair for a 74 swinger, but I don't know if the bolt patten for attaching the bumper is the same. Any thoughts/ideas?
Author: admin