Need to stiffen my rear 68 dart suspension

As said depends on what you results want. A cheap set of half leafs from JC Whitney will lift it about 2 inches and make it stiff over speed bumps. A rear sway bar will help more in cornering.[/QUOTE]

DING DING DING !! We have a winner !!

A rear sway bar will have a lot more effect on your cornering without giving you a buckboard ride (like a lowered ricer) and it is a lot easier to install.