Icon suspension the opposite of advertized...

[absalom]

What Dfarms said. I always air down for high speed off road. I've aired down Blizzacks to 14 psi, and they were dreamy.

All my trucks are terrifying fully inflated at speed on gravel.

 

[Skinfaxi]

Do you have a 3" panhard drop bracket installed? You NEED one if you don't have it. Without it, mine rode OK, but the slightest bumps seemed to make the rear end wiggle side to so going down the road, really seemed to upset the whole truck. The panhard drop made a world of improvement. Not saying it will solve your problem, but it will improve rear suspension road manners 100%. I still think a call to Icon is in order.

Yes, I noticed that I need one based on the rear end always coming back down a few inches to the left of where it launched. I'll order something tomorrow. I was thinking the Sonoran adjustable bar.

I also realized that I forgot to loosen then re-torque the rear upper control arms upon install at the new height. Since they're captive bushings, they were probably resisting movement. It seemed to make a noticeable impact on pavement. I can actually feel the rear end squatting down over larger dips in the freeway now.

What's worse, and it's something I don't even want to admit, but while I was under there I found that I installed the 890s on the wrong sides. The "A" spring was on the passenger side, and "B" was on driver, which would have exacerbated the panhard bar not being correct. I should have noticed the truck leaning towards the driver's side, but I didn't. Facepalm moment. I haven't had a chance to air down and try with the springs corrected and bushings re-torqued, but I'm eager to see how much of a difference it made.

 

[MattJakobs]

Out of curiosity, are they extended travel?

 

[Skinfaxi]

Out of curiosity, are they extended travel?

Fronts are the extended travel (with their UCAs). Rear shocks are the 2.0 series, which are listed as supporting 0-2" lifts.

Rear Savage bumper & swingarm has been ordered (the reason I went with 890s) so I'm sure that will drop the lift somewhat.