Man I really don't know anyone doing anything with quad stuff right now... but you can go to any hardware store and get bolts that are about an inch longer and put one more elastomer on the outside of the arm (opposite of the normal one) to work as a rebound dampner and get a few more bucks out of them if you have any more of the elastomers. Even if you don't sell them it makes a huge difference in the performance of the bars.