Sway bar 74 Duster

The OEM 73-76 A-body front sway bar diameter is 13/16".

I picked up a pair of aftermarket black poly bushings for my '76 Duster on eBay a couple years ago. I think the user's name was "TuffPerformance" (I can probably find his email if I looked hard enough). They fit in the stock brackets perfectly and look very close to OEM.

The larger diameter versions can be found on eBay pretty easily in Mopar Performance wrappers, which makes me think thats the brand mine was (mine didn't come in a wrapper).