I might go Icon as I don't want to buy +3SD springs and then regret not getting the HD, at least with Icon, I can pull them out and just replace the one leaf or add the leaf on.
Plan is to get RCI bed rack, with Ikamper mini 2.0 or 3.0 RTT and leaving it on the rear. I already have a rollnlock cover that is ok and not sure the RCI rack will fit on top but it might. That is probably 350-400 constant weight.
I see two people have differing views on Icon, y'all care to weigh in with more detail?
I had the same issue, I have a 2018 with around 50K miles and the rear was sagging so bad.... you set a cup of coffee on the tailgate and you have a Carolina squatted Raptor....... I HATED the nose high look.
I have about 3k miles on the Icon's (at the lowest setting) and the rear sits slightly higher than the front, and I have the Icon collars at max height in the front too....
They have been great and was a noticeable improvement on the rear end feel. I will say I have noticed a little noise every now and then from them, but have not tried to spray them as other members have suggested.
Here is a pic: Icon front collars - max, Icon rear leaf springs - lowest setting, 37 KM3s