Stepside Rear Sport bumper Question,...

[lolife99]

I have a set of rear sport bumper brackets for a 67-72 stepside truck.
These brackets look completely different than the fleetside rear brackets.
I took them off of a complete bumper assembly, so I know they fit.

The other part of my question,... I know these bumpers were installed from the factory, on the later model stepsides (73-87), even though they didn't match the "style" of the 73-87 front bumpers.

So,... are the brackets different? (67-72 compared to 73-87)

Also any pics of the factory "gravel guards" would be nice. I seem to have misplaced the ones I took off of these brackets.

Thanks, for any help or pics that anyone can provide.
I'll try to post pics of my brackets tomorrow.