View Poll Results: should a YJ have a shackle reversal

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  • yes

    10 66.67%
  • no

    2 13.33%
  • I'm inept and haven't a clue WTF you are talking about

    3 20.00%
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Thread: Front Shackle Reversal pro's/con's

  1. #1
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    Front Shackle Reversal pro's/con's

    So here is the question...

    I am preparing for the winters repairs/build on the Jeep and I am considering the possiblity of stretching out the fron 2-3 inches as well as a shackle reversal.

    I've heard some pro's and cons but have not definitely made a decision.

    who has done it?

    who wants to do it?

    who has done it and regrets it? why?

    who has done it and would do it again? why?

    this is also my daily driver.
    My latest project... Collection of Parts

    Other stuff... Building a doubler, D300 Flip kit

    Quote Originally Posted by Deadman 94 xj View Post
    "Coil springs are for ballpoint pens and pogo sticks".
    ебут раком

  2. #2
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    ^ good article... I am still undecided.

    Need more Input

  3. #3
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    I thought of doing this as well on my CJ.. as i have been told the flex gets better..
    I,m hoping for some good pros and cons out of this thread as well. As i have no idea
    if it is worth all the work.
    Jeeps, Bitches and Guns... Nuf Said

  4. #4
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    Are you lifting it more or just doing a shackle reversal? Has not having a shackle reversal caused you having any problems?

    My thought process was: there is a lot of work to do it and would I actually get any noticeable benefit from it. I highly doubted there would be a noticeable gain in abilities. I also hadn't wheeled the CJ as is so what would I compare it too? I decided to stay front shackle now and see if it creates problems. If it does I'll deal with it then but I probably won't do a reversal, I'd build a 3 link.

  5. #5
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    ^ I hear ya sidepipes... But there is other work that I am doing so the addition of shackle reversal will not be much additional work.

    the plan is to stretch the front end out and replace the cronic YJ rust issue behind the steering box with a new stronger better built frame and crossmember. So I'm cutting it out anyways. both sides.

    I have no plans at this point to get any taller but would be able to easily adapt a spring over to the reversal with a flatter spring etc potentially lowering my Jeep or adding a larger tire.

    I have had undesireable results with the shackle forward when I am out on the rocks. they just simply get in the way.

  6. #6
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    Pro's

    greater flex

    "pulling" leaf springs instead of "pushing"

    less noticable body roll

    Con's:

    must have damn good front shaft with lots of slip

    full droop, pinion points down, may cause binding if driveline not set right

    Creates "fangs" on front end, possibly causing some approach issues.




    Ive had at least 4 rigs with shackle reversals and personally i prefer them....mind u, my tastes seem odd compared to most on this site......i like women.
    Strength is nothing more than how well you hide the pain

    Yer hot, wet, and extremely satisfying. You always put a smile on my face and yer the first thing i want in my mouth when i wake up....aaaaaahhhhhh Coffee, my only friend.

  7. #7
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    Quote Originally Posted by MayhemInc View Post

    Ive had at least 4 rigs with shackle reversals and personally i prefer them....mind u, my tastes seem odd compared to most on this site......i like men.

    fixed that for ya sarge.

    that was too easy

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    ok fine i rescind my last comments, Shackle Reversal is too technical and special for the likes of u

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    Bahahaha... will you ever forgive me?

  10. #10
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    LG DD and all is forgotten.

  11. #11
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    If yer cuttin that much, you might as well do it.

    If I was going to that extent, I would spend some bucks on joints and springs to 3 or 4 link it.

    The Fangs, as Sarge calls them, and the pinion down would be my main concerns with a reversal.

  12. #12
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    ^I sure have thought about doing a 3 link but it just isn't in the cards right now.
    Best solution is the SR for now. have you done one and if so do you have any pictures?

    and Sarge WTF is LG DD?

  13. #13
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    LARGE DOUBLE DOUBLE

    my word, im worried for you now.....step away from the jeep

  14. #14
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    This weekend after I got into an argument with a large rock in a deep puddle I got the same idea in my head about buying a shackle reversal for my YJ.

    Here's how my shackle looked :rolleyes:

    I had to jack my YJ up in the air and pop it back into place.

    And here's a well built YJ that I saw with a shackle reversal on a set of what looked like Dana 44's.


    I wonder if I can (or should) put a shackle reversal on a Dana 30 :confused:

    Follow this link to a few models of shackle reversal kits;
    http://www.4wd.com/search.aspx?PN=1&kw=shackle+reversal
    just my two cents...take it for what its worth...


    95 YJ, RE 4" lift, 33" Procomp Extreme M/T's, Warn M8000 and mud - Trail Queen
    04 Liberty Sport, 2.5" Rusty's lift, ProComp LT245/75R16 AT's & a pair of Hella 700FF Lamps - Highway/Trail Ride & sometimes tow rig

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    Here is a decent write-up with pros and cons and also step by step install

    http://www.4wheeloffroad.com/techart...sal/index.html
    OF4WD 5435
    2dr - 2010 - Rubicon
    Cake bakers united

  16. #16
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    ^ I will have a read tomorrow looks like another good article Thanks.




    Quote Originally Posted by MayhemInc View Post
    LARGE DOUBLE DOUBLE

    my word, im worried for you now.....step away from the jeep
    Holy FAWK!!!... I must be tired. LOL.... you got it sarge. next time I'm up that way.





    Quote Originally Posted by JeepFever View Post
    This weekend after I got into an argument with a large rock in a deep puddle I got the same idea in my head about buying a shackle reversal for my YJ.

    I've seen that... On my own last spring. what springs are you running? I switched from superlift to BDS.

  17. #17
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    Quote Originally Posted by Jak Flash View Post
    Best solution is the SR for now. have you done one and if so do you have any pictures?
    Nope, never had the need to do one. My last 4x4 came from the factory with the shackle in the rear. My CJ was a get it up and running as cheaply and easily as possible--- then deal with issues kinda project.

    The main reason I assume you want to do this reversal is increased flex. I think the improved flex on a shackle reversal has less to do with the reversal and more to do with the optimization of the shackle angle.

    The secondary reason I would assume you like the idea of a reversal is no bent springs. I will admit I have seen more bent springs on vehicles without a shackle reversal than with. You have to decide whether the work is worth that added benefit.


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    It's the push pull concept, lemme try'n explain it

    in normal position, when putting a tire on an obstacle and you are under power, you are trying to "push" the tire up over it, first the shackle will move backwards, then yer leaf spring will open, and then yer tire will go up over obstacle. This puts strain on yer leafs.


    in the Shackle reversal, the tire contacts the object, and all the leaf can do is flex a bit and go more strait, and essentially "pull" your tire up over it, causing less stress on the leaf spring

    does this help?

  19. #19
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    ^ now in crayon so i understand.. lol

    Seams like allot of benfit from doing it if your all ready doing the axle work anyway
    I have a SOA all ready but I am tossing the d30 out and puting in a d44 so it might be a good time to do the reversal at the same time...I,m just worried about getting the front shaft right..

  20. #20
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    that makes lots of sense Sarge...

    How do I develop the correct shackle angle in a reversal? I was thinking of doing similar to what I have done int he rear... about 60`.

    I have found lots of articles on the pros and cons, thanks to all of you guys... but I still need some help around the stretch... as I see it, I simply move the spring perch forward, correct? then of course correct the position of the steering box.

    and as for the "fangs"... the length of the fangs will dictate my camber angle... is it best to correct it at this location? and add the lift in the rear? Or attempt to minimize the length of the shackle and create a longer "fang" in the front...

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