Polyurethane or Polygraphite?

1. What is FWIW????

2. No, your guess would be mistaken. My 71 had a good solid front susspension when I made the switch, also went from a nice comfy bench seat to RCI racing seats after the front was rebuilt. I did notice a difference in both instances, improvement in handling response and overall road feel and harsher ride. I took all the parts out (after a mishap with the car where a metal posted highway sign won a dispute on what object would occupy what space at a given moment in time) and the car handles as excellent as the 71 did when I originally put it together. I am not saying they won''t wear or that you'll be able to get 20 years out of them, but in there defense, rubber is pretty hailed after ten years also unless you never drive the vehicle. Just facts from my expierence. And I do like to drive my Darts, to qoute a term, "Like I stole it" :)

I recomend rubber for a daily driver or for the guy who wants comfort, not looking for max performance. But if you like to get out to the ragged edge of performance, poly does make a difference.