360 swap from van to 74 Duster
My 70 Dart has 318 bars.Way too much body roll. Used to scare my passengers. I temporarily solved it with stiff KYB shocks. They helped quite a bit.
A sway bar does wonders too.
Get the Shumacher mounts. Way less work than swapping a K frame! And a good used v8 K frame goes for about what you would pay for mounts anyways.