@Nacho do you have aftermarket track bars or replace the spring perches like @CookieMonster suggested?
Reading the install instructions, not sure if this is new due to the feedback on the prior kit, but they now have a note that says "properly installed springs will bow outward"
I do have an aftermarket track bar, but have not adjusted the springs. Will definitely confirm there is a little bit of a bow to them when sitting flat.
A slight bow is good, it helps prevent the springs from rubbing on the frame. Too much bow and it starts rubbing on the bump stop tube. There are some egregious examples of bowing springs on jlwranglerforum. Having an adjustable track bar helps recenter the axle. The Rock Krawler spring perches are only $30 and serve as cheap insurance from the oem perch collapsing. Does every mopar lift have a bowing problem, definitely not. Is $30 cheap insurance to make sure it doesn't happen to you, undoubtedly. While swapping springs isn't that hard, I'd prefer to do it once and be done.
Fair point on the cheap insurance. I assume I should buy both the front and rear perches from Rock Krawler?
I've only seen people touting the front pads. A quick search reveals one user claiming the rear pads only work with RK springs. I'd give RK a quick phone call and check if they recommend the rear ones or not.
Only other thing I would recommend is adding half inch Teraflex pucks in the front. Those along with the Rock Krawler front spring perches level out your rig so there is no rake. Check out my build thread. The Mopar lift was my first lift with Teraflex pucks and RK spring perches added soon after. Let me know if you have any questions!
