Since you have our older coils, with our new coils, you will notice a significantly softer ride rate, a little more travel and obviously the swap from linear to multi rates in the back.
We can tell everyone that our coils take all the travel available in the following shocks; RRD Racing (Our own - of course), Bilstein 5100's, Fox 2.0, and King that are commonly available to the aftermarket. Both our shocks and the Bilstein part numbers are listed on our website. For Fox, we actually recommend their longer travel 4 to 6" shocks for our 2.5 and 3.5" systems. It is our opinion that there is no point in having a coil spring that would be longer than what we currently have since there are not quality shocks readily available. If you are looking for something custom, then go that route, but at that point, going to coil overs so you can tune your suspension properly might be your best avenue since you would be matching springs of some manufacturer with shocks that may not be tuned together. Having opinions is great, but realizing what is obtainable and not is also very important or you end up with something that misses the boat on one level or another.
We also will tell everyone that our coils are not the longest out there. That is not our goal. Our goal is to provide a nice riding, nice handling, well performing coil spring in our systems. When the JK's first came out and the evaluations began, in Peterson's 4 Wheel and Off-Road, it was stated that our Jeep equipped with a 3.5 X Factor System was an absolute thrill ride and we never want to loose that. We know our brand name is Rock Krawler and we cater to some hard core off-roaders with our products, but for most, we cater to the daily driver/weekend warrior guys as that is what most of us are. We drive our JK
s each and everyday and wheel when we can.
Good luck with your build.
Last edited by Rock Krawler Suspension; 02-19-2014 at 08:20 AM.