Thanks for the help..
I have an original front and what I beleive to be an original rear bumper. What I found is that the front bumper is the same as the pickups including the 54 that I have. The rear bumper has is more curved in at the ends to fit closer to the body lines. I have a number of pickup front and rear brackets and none of them fit correctly to the frame width.
My plan at this point is to modify a rear set of pickup brackets and fabricate a filler panel using a hammerform.
