2015-2024 F150 4WD King OEM Performance Series 2.5 Adjustable Piggyback Rear Shocks (Pair) | Part# 25001-356A

I am writing this review after owning these shocks as well as the front King 2.5 adjustable coilovers for one year. This is my first truck build, but I have been off-roading for over 30- years and have a wealth of experience in the high-performance race ATV world. These King shocks have far exceeded my expectations and hopes in every possible area. The on-road ride quality is not degraded whatsoever over the stock, and cornering and going over bumps feels more controllable. Of course, it's off-road where these shocks truly stand out. I wanted to be able to take my truck out on the same open desert trails that I ride my race ATV on. I was hoping to be able to drive at maybe 30mph without rattling and beating myself and my truck to death. The actual off-road experience is this: 30mph is easily doable, even on rough trails. These shocks are valved for high-speed performance. They really do not start to shine until you hit about 20MPH. If you drive slowly off-road, you can get at speeds that the valving is not designed to account for (maybe 10 MPH) where you can get some spring "harmonics" and it can get a bit bouncy where the valving isn't damping the spring much. But you'll find you won't need to go this slow often. If you do (for large rocks or extreme terrain, for instance), just slow down and go comfortably at maybe 5-8MPH. I often find myself doing 40-50 mph on trails. These shocks will SMOOTHLY soak up ANY bump that isn't aggressive enough to bottom the suspension. Speaking of bottoming and bottom-out control, I urge anyone reading this to purchase the adjustable compression shocks. If I recall correctly, the adjusters have about 30 clicks of adjustment. Dead soft allows too much compression on small bumps, resulting in overly harsh rebound. I would start off with min. 20 clicks in. I personally drive 23 clicks in for cruising off-road. If you're going to run hard, turn the compression all the way in. Damping of small bumps is only minimally affected, while it will be much more difficult to bottom the suspension. I can go over mild to moderate whoops at 50MPH with the adjusters turned all the way in. See one of my attached pictures where I got air in the back If you're a serious off-roader like me (just did over 200 miles on open desert trails last weekend) who demands the best performance, you need and will not be disappointed in these Kings. Spend the extra $ on the adjustable compression!