George...I'm not sure I understand...
Can you not remove the rolled pan?
My buddy's '58 has a stock rear bumper
There's only a small gap visible at the licence plate,so I don't think the roll pan would really make a huge difference.
Just a thought.......

Last edited by jockbolter50; 12/29/2009 8:16 AM.
1950 Chevy Advance Design 3100 in Scotland
In the Stovebolt Gallery
More pix on Flickr.
I've definately got this truck thing in my blood ... my DNA sequence has torque settings
"Of all the small nations of this earth,perhaps only the ancient Greeks surpass the Scots in their contribution to mankind" Winston Churchill.