1973 Duster trunk lid torsion bar install?

I have a 1973 Duster that needs the trunk lid torsion bars installed. I have the torsion bars, I see that they are not both exactly the same. Is there a left and right side? I am missing the plastic sliders, where can I get them? Do the sliders have to be from a A-body? Any help would be appreciated. If anyone has pictures of how they install that would be great.

Thanks,Doug