Onlythe good, If the traction bars are welded solid at the front w/o a pivot It won't work and the weld will break the first time the car moves or shortly there after. It has to be able to Pivot at the front to work.
S10xGN you should be able to find the clamps through the sources that oneofakind67 mentioned. Or a local speed shop or an older parts house that sells/sold speed equipment. Think the places that never dust the shelves
There is usually one parts house in the area that never gets rid of anything untill it sells.
If there is a spring shop (suspension) in the area that you are in they can make you the clamps if you can't find them. A couple of online searches didn't show anything.