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Icon rear springs with Firestone Air Bags

Discussion in '2nd Gen Tundras (2007-2013)' started by 07KingTundra, Feb 12, 2020.

  1. Feb 12, 2020 at 8:30 AM
    #1
    07KingTundra

    07KingTundra [OP] New Member

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    Hi all, I have been searching for some research on what I need but haven't really found anything that matches. I have Icon multi-rate rear leaf springs about ready to be installed on my tundra. I have King extended travel front coilovers with adjusters, Icon upper control arms, and adjustable rear shocks. I am going to be towing a small camp trailer (probably about 5k fully loaded) and would like to put on some Firestone load leveling rear air bags to help. I know it will somewhat defeat the purpose of the springs but I got them for a REALLY good deal and would rather use them than shackles/blocks/etc. How can I set up the airbags to not hinder the rear suspension as bad once the springs are on with the air bags? I have seen the coach builder airbag spacers and also the Daystar airbag cradles. Would either one of them be useful? Does anyone have any pros/cons of this setup?
     
  2. Feb 12, 2020 at 9:28 AM
    #2
    Zero One Actual

    Zero One Actual Member among Members

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    I have icon rear shocks with remote reservoir, coachbuilder +3 shackles, Firestone airbags, coachbuilder airbag spacers on a 2019 SR5 Crewmax with a Leitner designs cargo rack and a decked storage system in the bed.

    I love the setup and have zero issues with any of it. I also have this compressor that I installed behind the rear seat behind drivers seat so it never is exposed to water, dirt or debris.

    There are no cons to this setup other than your own pre planning. For example: I went with the icon rears because they have more travel than the bilsteins. This way if I ever increase rear height with the airbags, my shocks are actually made for that and are not overextended.

    I have Bilstein 6112 on top setting up front with coachbuilder shims to level it out with Total Chaos UCAs on 285/75R18 Cooper AT3 XLTs on 18 SCS Ray 10 wheels.

    I have had zero issues with this setup in any way shape or form.

    The airbags can be run as low as 5psi I believe (please verify that). So when you want to, run them low and let your shocks do the work, or max the bags out and make people fly out the back of the truck for fun due to the bounce. Around town I’m at 12-15psi to keep it comfortable and level, if I am towing or have a bunch of stuff, I just adjust psi to whatever feels right. 40,50,75 or whatever. It’s the best of both worlds.
     
    Last edited: Feb 12, 2020
  3. Feb 12, 2020 at 10:28 AM
    #3
    07KingTundra

    07KingTundra [OP] New Member

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    I'm not going to run a compressor. For the amount of time I will need to air up the airbags more than the minimum amount of air, I can use a bike pump or my little air compressor that hooks to my battery. With the way I have the springs set up, they should provide roughly 3.0" unloaded. The only thing I have in my truck at all times is a Leer camper shell so it may not be quite that much lift. I don't off-road my truck much unless we are going camping which is pretty regularly in the nice weather months. I figure with the rear King adjustable shocks, rear Icon springs and the Firestone air bags, I should be able to fine tune it pretty good for the road and for the off-road camping trips.
     
  4. Feb 12, 2020 at 10:48 AM
    #4
    SprinterAE86

    SprinterAE86 New Member

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    Don't forget the daystar cradles to go with the Firestone air bags.
     
  5. Feb 12, 2020 at 11:14 AM
    #5
    07KingTundra

    07KingTundra [OP] New Member

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    would it be good to use the Coach Builder spacer for the bag plus the Daystar cradle?
     
  6. Feb 12, 2020 at 11:24 AM
    #6
    SprinterAE86

    SprinterAE86 New Member

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    Coach builder spacer for the rear leaf springs? I'm not familiar with that.

    The good thing about air bags is you only inflate it when you need it. Then deflated to 5psi for normal /empty loads. Hence, you level or add rake base on how heavy your load is.

    I carry a small air compressor in my truck just for adding air to the bags and sometimes the tires.

    20200212_142533.jpg 20200212_142515.jpg 20200212_142422.jpg
     
  7. Feb 12, 2020 at 11:39 AM
    #7
    07KingTundra

    07KingTundra [OP] New Member

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  8. Feb 12, 2020 at 11:53 AM
    #8
    SprinterAE86

    SprinterAE86 New Member

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    By the looks of it, it will be bolted between the Firestone bottom plate ans daystar. Go for it.

    I do not have that much lift to have a use fir it. I don't think I'll even need it when I get a 1" shackle.
     
  9. Feb 12, 2020 at 12:03 PM
    #9
    07KingTundra

    07KingTundra [OP] New Member

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    I emailed Coach Builder to get their input. I found on Tundratalk they recommended for someone with Deaver rear springs to use the Daystar cradle. The Icon springs should be similar setup so that may be more beneficial.
     
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  10. Feb 12, 2020 at 1:52 PM
    #10
    Zero One Actual

    Zero One Actual Member among Members

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  11. Feb 13, 2020 at 10:57 AM
    #11
    07KingTundra

    07KingTundra [OP] New Member

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    I received an email back from Coach Builder and they stated at 2.5" lift rear with aftermarket springs, it would be a good idea to run their bottom spacer with the Daystar cup on top.
     
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  12. Feb 13, 2020 at 11:17 AM
    #12
    Hbjeff

    Hbjeff New Member

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    In picturing the rxt setup with the airbags/spacers im imagining this:

    Say the airbags are unloaded, empty bed weight. Aren’t you limiting your uptravel by a few inches? The rxt springs increase overall travel because they can droop out more. But their ride height has the truck sitting higher so they have more up travel as well. If you have some huge spacer/cradle for the air bag in the middle of there it seems like you’re killing a bunch of that up travel?
     
  13. Feb 13, 2020 at 11:37 AM
    #13
    07KingTundra

    07KingTundra [OP] New Member

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    That's kinda what I was thinking. I think the spacer is 1.5" and the cradle is .75" so it wouldn't be a huge amount but still killing travel I would think.
     
  14. Feb 13, 2020 at 11:42 AM
    #14
    Hbjeff

    Hbjeff New Member

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    Possibly one would want to add a separate bumpstop if doing all this stuff. Thats a lot of load coming down fully on a largely empty airbag?

    For an average user it might not matter, but getting rxt springs means one is likely wanting to offroad
     
  15. Feb 13, 2020 at 1:27 PM
    #15
    07KingTundra

    07KingTundra [OP] New Member

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    I think I am going to start with getting the air bag kit and the Daystar cradles. If I need the spacer I can always add them. The truck isn't going to be wheeled hard off road at all. It will be mostly like the "average" user. The only reason I am using the Icon rear springs is because I got them for a really good deal.
     
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  16. Jun 20, 2020 at 11:20 AM
    #16
    chasenicholas93

    chasenicholas93 New Member

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    If I'm running stock suspension should I still buy the day star cradles? What else would you guys recommend with the Firestone 2445s?
     

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