Dinosaur Overland
New member
Follow up to my own post. Do not buy the "Performance springs" they suck. Major sag with weight under the 660lb rating. Spoke with Ironman. They are recommending I get the 3" lift springs which are for a 440lb-880lb weight rating. I did not get these originally because I do not have a constant load on my springs (factory bumper, no drawer system etc). My trailer has a 300-350lb tongue weight and I probably have 150-200lbs in the back of my truck when camping. The sag is over 3". I would have to measure again the next time I load up. My 4Runner looks like it still has factory springs in back when loaded.
The Icon heavy duty springs I had on my FJ with the same setup did not do this.
https://iconvehicledynamics.com/acc...fj-03-up-4runner-rear-3-dual-rate-spring-kit/
Ironman won't refund any money because the springs are used. The description of the "2 inch performance springs" is very misleading.
This is going to cost me a good about of money to replace them including installation. With KDSS it is way different than the simple setup on my FJ.
I don't want airbags (another thing that could fail) and I know the ride will likely be very stiff unloaded with the 3" springs. My simple free advice is do not buy either of the 2" spring options from Ironman.
Oh well...
Here is a picture with our 4Runner with Ironman stage 3 suspension, I have the 660 pound rear springs and they work great for me. I do hate that people seem to be having a problem but I can only say I love my suspension.![]()
Sure! Shoot me a PM or link. I have not looked at YouTube yet for installation ideas. Even though this is highly annoying I may wait until I add a rear bumper. That wasn't in my 2021 plans though.
unbolt the 2 vertical bolts that connect the sway bar to the "end links" (so 4 total if you remove both sides). those are easy easier to align then unbolting from the axle tube. the rear end isn't bad to re assemble. Front is annoying i agree lol.
1Louder,
I am curious about this setup in the SW in the first place.
It obviously relies on the springs to do the work. That should ensure long time between changes/rebuilds but this is the opposite of a desert performance setup.
Very interesting idea and many here say they love it so that's great, but does not tempt me here in AZ.
Looking at the foam cell kits. Deciding between stage 2 and 3 for my 4th gen with 33"s. My LCAs are frozen and suspension is worn so was going to cut out the LCAs and do a full suspension upgrade. Going with the performance kit for weight, but any input on the lift size option? Will 3" on both front and rear keep the vehicle with only a slight forward rake? or mostly level? Just wondering how the vehicles are sitting. Was also considering a 2.5" front and 2" rear but worried it might settle weird. Any input helps, the tech just said do a stage 3 with 3" all around, but said they don't know how the vehicle would sit after. I also don't want to go 3" and be stressing out my CVs.
Huge thank you to all that came before me here and shared feedback.
I opted to convert from my spacer lift to a suspension lift and despite at-cost pricing for Kings and lots of Bilstein love, I opted for Ironman 4x4 given the value for my use case.
Use Case: Adventures-only 2016 Limited in/around Colorado with summer wheeling, winter ski trips, and Costco runs
Weight Notes: Constant fixed load of !420lbs for SSO Full Roof Rack, Full RCI skids (all of them) with aluminum options where available, RCI flat sliders with kickout, hidden winch mount + winch...and rarely +150lbs for Tepui RTT or a 16' dual console fishing boat.
Previous Setup: Went with a Daystar spacer lift on XREAS and loved the lift AND the company's service -- one of the best experiences out of any company I have ever reached out to. This setup addressed the nose diving from hard braking, gave some good height, but did limit suspension travel when offroad. I wish I did this on day one, not year three. I opted to do a diff drop as well (by Revtek)...jury is out on this but didn't seem to hurt and improved CV angles.
Ironman 4x4 Setup: Foam Cell Pro, Stage 3 with Front (prebuilt) 2.5" / Performance Springs and Rear 2" Performance Load Springs
Alignment: Just had a solid shop in Denver for an alignment and bumper to bumper check to ensure my DIY install went well...all came back okay. They suggested against Heim joints for the adjustable rear sway links due to noise...but it came with the kit and I don't have a problem with the noise. Here are my specs:
OEM UCA & XREAS (old dealer alignment)
- Left-Front: Camber @ 0.5*, Caster @ 1.9*, Toe @ 0.46*
- Left-Rear: Camber @ -0.3*, Toe @ -0.08*
- Right-Front: Camber @ 0.6*, Caster @ 2.2*, Toe @ 0.5*
- Right-Rear: Camber @ -0.3*, Toe @ 0.08*
- Total Toe @ 0.96*, Steer Ahead -0.02*
OEM UCA with Daystar 2.5" Front/Rear Spacers on XREAS
- Left-Front: Camber @ 0*, Caster @ 2.8*, Toe @ 0.04*
- Left-Rear: Camber @ -0.3*, Toe @ -0.1*
- Right-Front: Camber @ 0.1*, Caster @ 2.7*, Toe @ 0.05*
- Right-Rear: Camber @ -0.3*, Toe @ 0.08*
- Total Toe @ 0.09*, Steer Ahead 0*
Ironmen UCA with 2.5/2" FCP Stage 3 Lift
- Left-Front: Camber @ 0*, Caster @ 3.4*, Toe @ 0.09*
- Left-Rear: Camber @ -0.4*, Toe @ -0.35*
- Right-Front: Camber @ 0*, Caster @ 3.6*, Toe @ 0.08*
- Right-Rear: Camber @ -0.3*, Toe @ 0.32*
- Total Toe @ 0.17*, Steer Ahead 0*
Actual Lift Height
- XREAS Stock - Dont have them
- XREAS + Daystar - May have them, will look
- Ironman (+250lbs for mods pre sliders, winch): Left-Front @ 23.5", Right-Front @ 23.4375", Left-Rear @ 24.5", Right-Rear: 24.75"
- Ironman (+440lbs for all mods): Left-Front @ 22.87", Right-Front @ 23", Left-Rear @ 24.38", Right-Rear: 24.6"
Thoughts So Far
- I am running FN F(X) Pro 17" wheels with Falken Wildpeak AT3/W LT(E) 265/70-17.
- When I purchased, Ironman had limited stock but I spoke with their customer service team and after going over my specs, seemed to be the right pick. Great team there!
- My RTT and 16' fishing boat use cases are rare and I feel airbags are the better option for me versus a much stiffer spring. It isn't tough or expensive to swap front or rear springs now that XREAS is gone should I change my mind.
- I am glad I waited to see if I needed the usual Toyota lean spacer...my current numbers are close enough but I did buy the adjustment wrench just in case (for the fronts).
- My 4Runner is no longer a daily driver. So if not on a Costco trip, she is off road or making a run to go skiing...so the truck-like ride is good. For what XREAS was, it's a superior on-road experience to any SUV/truck suspension I have driven in IF smaller/medium spacers are added to the wrong. The braking nose dive wasn't great, but cornering was unmatched.
- As with nearly every product I have purchased, instructions are hit or miss. Ironman would be mid-pack. They have a good install video on a GX for the stage 2 lift and there are a handful of install guides like Trail4Runner out there. With a bit of Googling, I found the correct panhard and rear sway link adjustments which were most elusive.
- I think I lost a set screw and will email Ironman...I don't expect any issues but also have no worry...they are extremely responsive and knowledgeable compared to some of the other manufacturers I have come across for Toyota and Chevy.
- I am at day 7 with 120ish miles on the clock...time will tell how things settle.
- I plan to add airbags after a RTT trip and a short boat tow to see if I really need them or can live with some sag.
Happy to answer any questions folks have, especially if you are doing the Stage 3 setup and need some pointers.
question:i have a 2016 4RN 2wd limited, wanted to level out with small lift do weekend adventures beach, mountains, light off road travel on lots of red dirt and gravel i recently purchased ironman's stage 2, 2.5" suspension kit Front Springs:
2.5" Lift Performance Load (0-110LBS Additional Payload)
Rear Springs:
2" Lift Performance Load (0-660LBS Additional Payload)
my question is i believe i have x-reas and will have to remove them to install the other , any advice ??? I have stock 245/60r20 and would like to go a little bigger with better terrain tire part of why I opted for the lift and i just dont like the low front ride, as well soft dirt and mud with what i have now there is no grip and spin... kind of a noobie any info will help and i have read lots as well as asked questions but cannot find exact thread for install on type and any issues with install or maybe a suggestions instead of .. thinking of cancel order since they are backorder anyway...
Hello, I'm considering the Ironman Foamcell kit. Was thinking of doing the 2" so I didn't have to do UCAs and a differential drop. Your truck looks great! What size lift did you buy from ironman and what size tires are on the SR5 wheels. I just put new 275s on my SR5 wheels and I like how they look. Thanks!
Hi, all. Thanks for the excellent details, install links, etc. I places order and the code GREEN25 (Through 3.17.21) got me $599 off on Pro Performance Stage 2 kit. $1799 delivered is a smoking deal and free TREDs boards included. Was looking at Icon Stage 2 and this seems very comparable kit for less.
I missed the 25% off code by a few days. Any chance we’ll extend this???
If you sign-up for email updates on their website, they'll let you know when the next sale will hit. My guess would be somewhere around Memorial Day or 4th of July.
Spring25
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