Suburban Bumper Guards ?

[Ironhorse]

I have a '91 1/2T 4x4 'Burb with the black center wrap or trim piece mounted to the front bumper. It has some sort of short black bumper guards that seem made of the same poly/plastic/vinyl ? I have seen other 'Burbs of that age with the taller chrome guards with the rubber strip in the center. Is one style an option over the other? I like the taller style, just seems to look better in my opinion. Anyone have an idea where I can get a decent pair. Have looked at several 'Burbs in local yards with no luck. How differ in the mounting and if I find a pair at a swap meet, anyone have a pic of the contour so I will know they fit correctly.