Hi all,
want to fit a rear sway bar to my 67 supreme 330, not sure what make or size and whether to upgrade to a matching pair front/ rear aftermarket

 

I'd get specifications on the ones used on the 4-4-2s and match them up with any aftermarkets. I'd also make sure that the front sway bar and all four springs will also match

 

You'll need to also box your rear lower control arms or buy a set of aftermarket. While your doing this project you also might as well the rear suspension bushings. Check the classified section on here I believe someone was selling a stock setup, UMI stuff is also a good aftermarket choice.