OEM E body sway bar bushings

I put a swap meet OEM rear sway bar on my 73 Barracuda (I call Cuda). The bushings are worn and I want to replace them with Urethane bushings. Is there a replacement bushing with metal brackets or do I have to break apart the current brackets and replace the bushings only in the existing bracket? If I can only replace the bushings, any tips/how to's on how to replace those bushings?

Thanks in advance for your responses.

Yes u must cut apart the metal brackets and reweld or force the new rubber/urethane into them....

Drill out the spot welds on the bracket. That's what I did with mine. There was only one spot weld on each side of the bracket. I drilled out one side and pried it apart enough to get the bushing out. Clamp it back together and weld it up.

I've also seen people lube the new ones up and work them in (carefully) with wide mouth pliers, but that was with rubber.

Where is the best place to get the urethane bushings? I don't recall seeing them anywhere.

I used a kit from Energy Suspension. The part number I used was 9.5106. I used the black ones to try and keep it stock looking.