What you need to know about 2 link and 4 link suspensions

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  • Опубликовано: 3 окт 2024

Комментарии • 55

  • @jlewis572
    @jlewis572 5 лет назад +5

    Tha is for this video.. I now have all my questions answered. Thank you! I've always been skeptical about 2 links after hearing it's not safe for air ride, and it's better to do a 4 link suspension. But now I understand them more clearly.

  • @guyrobinson743
    @guyrobinson743 5 лет назад +3

    Thank you Lawrence I've been rolling on a 2 link for the last 5 year never had a problem. Been looking at 4 link. But after your class I'll save my money and buy something else

    • @earthscraper69
      @earthscraper69  5 лет назад

      Your welcome check out bio customs comment they had some corrections to what I had said.

  • @scrapingpavement
    @scrapingpavement 5 лет назад +4

    Great video and topic!
    I do want to add on a a little bit of the off center wheels. I was curious about this myself so i drew up a couple different link bar lengths to see how much travel the wheel goes back in forth. Before i say the numbers the graph i drew up would be setting the bar parallel to the ground at mid travel ( 4" ), of lets say 8 inches of total travel.
    15" link bar has a total of .54" of movement
    20" link bar has a total of .40" of movement
    28" link bar has a total of .28" of movement
    34" link bar has a total of .23" of movement
    I used to setup my link setups at "ride height" but was often told to set it a half travel to keep axle movement small as possible. I think the biggest problem people make is not setting up the bars parallel to mid height. So i went back to sketch up to test the theory of setting a 15" link bar parallel to the ground and full drop and going 8" up from there. The movement is now a shocking 2.31" from the original .54"
    I feel you, i can talk on this topic forever as well lol, keep up the videos.
    Keep on truckin'

    • @blacktahoe6409
      @blacktahoe6409 5 лет назад

      scrappingpavement I would appreciate a little more info on 3 link setups I recently bagged the rear of my 97 GMC Sierra and I would like to know your opinion on pinion angle and where you would set it I like to drive with it low but I find it has a small amount of vibration and my pinion is up a little and I do have split drive shaft thanks in advance

    • @earthscraper69
      @earthscraper69  5 лет назад +1

      @scrappingpavement thank you and that's why I say go with where your ride hight will be mainly for the pinion angle that is most important then the rest only matters for short times when you need to lift over something or lay at a show or lay to drag.

    • @earthscraper69
      @earthscraper69  5 лет назад +1

      @projectc1500 the vibration could be coming from the carrier bearing. But my first guess would be. Get your tired balanced you would he surprised and then an alignment. If it's still doing it then I would try that carrier bearing. Hope this helps.

    • @its_just_chad
      @its_just_chad 5 лет назад

      @@blacktahoe6409 always set your pinion angle the opposite of your transmission.
      Example from my truck:
      Transmission is at -3°
      Axle set at +3°

  • @MrHotrodharry
    @MrHotrodharry 3 года назад +1

    The Ring gear slings oil to the front. Pinion angle is more important for u-joint life and Binding.
    Case in point a 2wd and 4wd use the same rear but different Pinion angle. The 4wd pinion points up more. The factory lift blocks is Tapered.

  • @LVPIERCED
    @LVPIERCED 3 года назад +1

    Great video. By far the best explanation I’ve found. Now to bag my ranger 😁

  • @its_just_chad
    @its_just_chad 5 лет назад +1

    Ive honestly never thought about axle fluid level transfer when debating 2 vs 4.
    Well done Lawrence. Its a very touchy topic. Im pro 4 link, and have tried a 2 link as I believe I mentioned on Faceyspace.
    Anyways, well done. Good information for sure.

  • @TxStang
    @TxStang 5 лет назад +3

    That's why i need automatic level sensors .... for when the wife rides with me so her side doesn't drag LMAO

    • @earthscraper69
      @earthscraper69  5 лет назад

      Oh hell lmao your not even right for that one ahahahaha

  • @coollasice4175
    @coollasice4175 5 лет назад +1

    *Good info, Prof. Duarte. Nice whiteboard..*

  • @bo4638
    @bo4638 5 лет назад +1

    Thank you for this video Sir, I like your basic build concept my myself. Personally and I know the "opinion" joke, but all the cantilever, bars, tubes and bent crap in a trucks bed just to hide a bag in there somewhere looks ridiculous.

    • @earthscraper69
      @earthscraper69  5 лет назад

      Your welcome I can understand ridiculous but at the same time it's a work of art for the builder.

  • @Grounded4Life_jr
    @Grounded4Life_jr 5 лет назад +1

    Great video brother I'm going 4 link with a watts link

    • @earthscraper69
      @earthscraper69  5 лет назад

      Thank you and awesome lots of control with that set up.

  • @jamesfcookjr
    @jamesfcookjr 5 лет назад

    Lawrence buddy great seminar on. suspension but technology is so far advanced in air suspension there are trucks that track and autocross on air but you are right they are all on 4 link 😊👍

  • @michaelsanchez5607
    @michaelsanchez5607 5 лет назад

    Good video and Happy Thanksgiving and have a blessed day Keep On mini Truckin bro

    • @earthscraper69
      @earthscraper69  5 лет назад

      Thank you and happy thanks giving to you as well.

  • @johnkaylaeddings2935
    @johnkaylaeddings2935 3 года назад

    so is a 2 link a bad idea on a 79 suburban where I will be driving it around town, and sometimes to shows 4+ hours from home seeing 80+ mph on the freeway? I just want it lowered, good ride, and air it out when I park

  • @OTANERJD
    @OTANERJD 3 года назад

    I have a c notched 85 nissan pickup. There is only one bar from left frame to right frane. Is this a 3 link system?

  • @AstonThaRat
    @AstonThaRat 4 года назад

    Another down side to doing a reverse link, is that u don't have much room to get the pivot point far enough away from your axle. The further away the pivot point is, the less your axle's pinion angle is gonna rotate.

    • @earthscraper69
      @earthscraper69  4 года назад +1

      Yes and know please check out my newest video showing even more on the reverse 4 link.

  • @lowlife9534
    @lowlife9534 5 лет назад

    Great video man

  • @tannerhederson4067
    @tannerhederson4067 3 года назад +1

    Explain a 3 link please

    • @earthscraper69
      @earthscraper69  3 года назад +1

      Same as a 4 link only the top bar is wishbone to triangular and support the rest axle

    • @tannerhederson4067
      @tannerhederson4067 3 года назад

      @@earthscraper69 thank u and love ur videos has help open my eyes to bagging my project s10

    • @earthscraper69
      @earthscraper69  3 года назад

      You're welcome

  • @markhardtopsmith1428
    @markhardtopsmith1428 5 лет назад

    so what was the original theories behind using leaf springs back in the day?

    • @earthscraper69
      @earthscraper69  5 лет назад

      I don't know I want alive yet

    • @markhardtopsmith1428
      @markhardtopsmith1428 5 лет назад

      Lawrence Duarte I ment in a bag set up

    • @earthscraper69
      @earthscraper69  5 лет назад +2

      Oh it's still used sometimes but it's no good using the main leaf only you place a bag center of the spring to provide lift same as a load helper spring. Biggest set back is axle wrap the one main leafed is not strong enough to hold things where they need to be. Just dangerous.

  • @juliasimpson4512
    @juliasimpson4512 3 года назад

    Is using Johnny joints better suited for 2 link?

    • @earthscraper69
      @earthscraper69  3 года назад

      They won't keep your axle centered so no i personally wouldn't use them

    • @MyLonewolf25
      @MyLonewolf25 Год назад

      You’ll need to use a pan hard bar or watts link
      But you should use one anyway.

  • @jamesdisney9150
    @jamesdisney9150 5 лет назад +1

    You need to tell people if you're talking about building a bagged truck or a 4 by 4 because your drawings are animated 4 links Three Links and two links don't travel that much I'm not trying to be a smart-ass a lot of it's got to do with how you put your brackets

    • @earthscraper69
      @earthscraper69  5 лет назад +1

      This is true I should have mentioned that I see your point

  • @jessestandridgesr
    @jessestandridgesr 5 лет назад

    What if i wanted to daily my build?

    • @earthscraper69
      @earthscraper69  5 лет назад

      Just depends on how you drive it daily as to what way you should do your suspension

    • @jessestandridgesr
      @jessestandridgesr 5 лет назад

      Well id have to say ur normal daily drive some highway of course it be on a 93 silverado 1500 swb

    • @earthscraper69
      @earthscraper69  5 лет назад

      Everyone has a different way they daily drive there vehicles bro.