66 A Body plymouth

The one on E-bay requires factory A-body sway bar type lower control arms or you'll have to make tabs to install them. The new aftermarket kits usually come with them. If you don't need it to be original looking, an aftermarket bar might make more sense. There are many diameters available for your particular application. I've seen some brands that didn't fit too well however....like the early ADDCO's. they may have improved their design since then but the early ones were not very good. Check out some earlier threads on this site. There was a member that had designed a pretty good looking system the he was offering for sale.