Nobody reproduces these brackets.

It is possible to burn or cut the old bushing out and slip a new set over the bar and into the bushing, but it is not easy. Most people just cut one side of the bracket and ease the bushing out. Then you can install the new bushing easier, then re-weld the open side of the bracket and paint.

I have an original set for sale that I cut the bushings out of to give you a better picture of what Im talking about.