They redid the shocks for the JL. they are specifically bnuilt for the JL. I love the concept of them. will have to see if the suffer the same issues as the ones before it. But they are the best thing to going all out on coils which are super expensive and hard to dial in and setup correctly. These things are pretty awesome. However I am still getting over how much they set me back though. once you get past that part the are hands down awesome!Why did you guys go with the six pack shocks? From what I've read about them, they leak and need to be rebuilt often.