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Tundras don't have struts

Discussion in 'Suspension' started by jberry813, Jan 13, 2017.

  1. Jan 13, 2017 at 1:35 PM
    #1
    jberry813

    jberry813 [OP] The Mad Scientist Staff Member

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    The level of suspension misinformation and incorrect verbiage and nomenclature on Tundras is spreading faster than herpes at ASU. Please educate yourself.

    While they are visually similar, struts and coilovers are two very different things. The term "strut" originates from a MacPherson strut based suspension system. In a traditional MacPherson suspension, components include a lower control arm, a hub/spindle assembly, and a damper/coil assembly (known as a strut) that bolts to the top of hub at the bottom of the strut and attaches to the body or frame buckets at the top of the strut. Note...there is no frame mounted upper control arm with a MacPherson strut suspension. The strut itself is an integral part of the actual suspension pivots and steering. Struts provide vertical and lateral support. If you remove the strut, there is nothing holding the suspension together and the hub and wheels would flop all over the damn place however they see fit. Also the spindle/knuckle takes a significantly larger linear load when compared to a coilover based system as the entire weight of the vehicle is supported by the spindle. In addition, since there is only a single arm, the camber changes much more significantly as the suspension cycles up and down. This is why MacPherson strut based systems are used in vehicles with small amounts of wheel travel.

    [​IMG]


    In contrast, a coilover (coil over shock) based suspension has both upper and lower control arms/links. The UCA/LCA have outer pivots that attach to the hub and inner pivots off the frame. The coilover itself plays no role in the suspension pivot points. You can remove the entire coilover assembly, and the suspension will pivot and turn exactly as it would with the coilover installed (the truck would just be sitting on it's nuts). The only purpose a coilover serves is to dampen the suspension oscillation (the shock's role), and to set vehicle ride height (the spring's role)...that's it! The double arm geometry allows for less extreme camber change as the suspension cycles. Every single Tundra since inception came from the factory with a coilover based front suspension. Yes...you have coilovers...stock. In addition, coilover does not mean adjustable. It simply means the coil spring surrounds the shock absorber and the assembly is independent of the suspension.

    [​IMG]


    [​IMG]

    Now I realize this will probably fall on deaf ears. Typical responses are "tomato tamaato" or "you know what I'm talking about." But then again, why not sound like you actually know what the fuck you are talking about? It's not going to hurt you to sound and be more educated. Its the same contrast with firearm magazines vs. clips.

    Go forth and be educated.
     
    Last edited by a moderator: Jan 13, 2017
  2. Jan 13, 2017 at 1:45 PM
    #2
    csuviper

    csuviper Moderator Staff Member

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    Good info Jason ;)
     
    T-Rex266 and jberry813 [OP] like this.
  3. Jan 13, 2017 at 1:48 PM
    #3
    ColoradoTJ

    ColoradoTJ I drink…and I know things. Staff Member

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    Very detailed as usual Jason. Thanks for the tech.
     
  4. Jan 13, 2017 at 2:21 PM
    #4
    ej63090

    ej63090 New Member

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    Nice work!
     
  5. Jan 13, 2017 at 2:29 PM
    #5
    mdavis

    mdavis I need a beer.

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    :thumbsup: As soon as I move to Lake Tahoe, I wanna buy you a beer. :rofl:
     
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  6. Jan 13, 2017 at 2:54 PM
    #6
    D1227

    D1227 New Member

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    Actually I have wondered what the difference was. Definitely wasn't going to ask on the forum...all I knew was coilover sounded cooler to me than strut. Thanks for the info
     
    Last edited: Jan 13, 2017
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  7. Jan 13, 2017 at 2:55 PM
    #7
    jberry813

    jberry813 [OP] The Mad Scientist Staff Member

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    LOL. What the fuck is going on here. Some moderator tomfoolery.

    @Sean266
     
  8. Jan 13, 2017 at 3:00 PM
    #8
    csuviper

    csuviper Moderator Staff Member

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  9. Jan 13, 2017 at 3:03 PM
    #9
    TruckyTruck

    TruckyTruck Dumbest Username

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    Thanks prof...
     
  10. Jan 13, 2017 at 3:05 PM
    #10
    jberry813

    jberry813 [OP] The Mad Scientist Staff Member

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  11. Jan 13, 2017 at 3:24 PM
    #11
    sdhq_offroad

    sdhq_offroad New Member Vendor

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    Corrected back to normal LT. Dan
     
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  12. Jan 13, 2017 at 3:31 PM
    #12
    TXMiamiFan

    TXMiamiFan SSEM #3. Don't forget to try the search bar.

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    Thanks Jerry :rofl:
    All good info. I don't know shit and definitely don't know what the fuck I'm talking about, but this helps me talk a little bit more intelligently on this forum. Appreciate the write up.
     
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  13. Jan 13, 2017 at 3:55 PM
    #13
    D1227

    D1227 New Member

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    What did I miss?:notsure:
     
  14. Jan 13, 2017 at 4:10 PM
    #14
    Carlos@Camburg

    Carlos@Camburg Carlos @ Camburg Vendor

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    sure the verbage might be off a little. but if you go into a shop asking for a double wishbone suspension, you're probably gonna look like a dummy too. lol

    call em shocks, springs & a- arms. lol
     
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  15. Jan 13, 2017 at 4:21 PM
    #15
    831Tun

    831Tun heartless Bastrd

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  16. Jan 13, 2017 at 4:36 PM
    #16
    BlueFalconActual

    BlueFalconActual Field Day Inspector Extraordinaire

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    Dang, Jberry is on a roll today. Must be stuck inside because of all the snow.
     
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  17. Jan 13, 2017 at 4:40 PM
    #17
    jberry813

    jberry813 [OP] The Mad Scientist Staff Member

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    Oh good lord. I hate you guys :rofl:

    I didn't make this thread (at least not here in tundras). I made it on TW and a mod did some spy shit to make it seem like I made it here too.
     
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  18. Jan 13, 2017 at 4:41 PM
    #18
    jberry813

    jberry813 [OP] The Mad Scientist Staff Member

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    Not at all. I've been snow bashing all over town all week in 4wd and chained up. Actually just leaving Reno from picking up truck parts and goodies.
     
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  19. Jan 13, 2017 at 4:48 PM
    #19
    831Tun

    831Tun heartless Bastrd

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    I hereby solemnly swear to never confuse, in person or in print, a coil over with a strut, so help me lawd!
    , upload_2017-1-13_16-47-50.jpg.
     
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  20. Jan 13, 2017 at 5:30 PM
    #20
    CM-LENNY

    CM-LENNY No Complaints

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    Thanks for that write up Jason. Great having a Mad Scientist on here that knows what they're talking about and follows it up with hard facts. PLEASE don't bash your head into the keyboard, it gets kinda messy.
     
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  21. Jan 13, 2017 at 5:40 PM
    #21
    ej63090

    ej63090 New Member

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    I keep getting shit from my buddy who has a wrangler because I keep asking him if he is going to throw some coilovers on it. Keep forgetting that it is an independent coil and shock. Suspension is confusing.
     
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  22. Jan 13, 2017 at 5:42 PM
    #22
    ej63090

    ej63090 New Member

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    Another thing to consider on the trucks they have no strut towers in the engine bay. On my Corolla which have struts they are mounted through the tower in the engine bay.
     
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  23. Jan 13, 2017 at 5:49 PM
    #23
    csuviper

    csuviper Moderator Staff Member

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    These are def your words, and since you were just talking about it on another thread it only seemed appropriate that you write it up here too.
     
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  24. Jan 13, 2017 at 6:08 PM
    #24
    jberry813

    jberry813 [OP] The Mad Scientist Staff Member

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    No joke. Litterally LOL. Even spit some beer.

    No promises

    I wouldn't call it "confusing" in the traditional sense. But if it's completely new, it's drinking from a fire hose. Look, I'm a computer/software tech geek. Just ask @Bob. This truck shit is just a hobby. But math is math...and I'm good at that.

    Correct. Tundras have a frame mounted coil bucket to support the coilover :cookiemonster:

    Touche
     
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  25. Jul 13, 2017 at 5:33 AM
    #25
    Redbeard321

    Redbeard321 ballin' on a budget

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    I'm new to the tundra world, so go easy on me. Rams had two different suspension setups for 4x2 and 4x4, one had springs and shocks the other had struts. Is there a different setup on the tundra for 4x2 and 4x4?
     
  26. Jul 13, 2017 at 6:12 AM
    #26
    zcarpenter92

    zcarpenter92 Yotas and Yellow Jackets

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    Nope. It's coilovers either way.
     
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  27. Jul 13, 2017 at 6:29 AM
    #27
    Redbeard321

    Redbeard321 ballin' on a budget

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    Good news. That means a 2wd Tundra can use bilstein 5100s? That was my biggest pet peeve of the ram 2wd.
     
  28. Jul 13, 2017 at 6:51 AM
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    Radworker

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  29. Jul 13, 2017 at 6:58 AM
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    csuviper

    csuviper Moderator Staff Member

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    Yes it can.
     
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  30. Oct 14, 2017 at 9:17 PM
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    UTTundra

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    Thanks for the info. Called numerous shops around me a few months ago to get a quote on new shocks. Everyone kept telling me I have struts.
     

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