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Thread: suspension design

  1. #1
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    suspension design

    Does anyone use quarter elliptical with a 4 link setup anymore for the rear, and if not then why not? Seems like a good suspension for a trail machine.
    1989 Jeep YJ, AMC 401 fuel injected, D60 welded/14b locked, SM-465, np203 to Dana20 doubler, 44" XMLs, etc....

  2. #2
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    Stickybongsmoking is offline Yes, this is gawd damn muthafockling CTD NUT.
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    1/4 elliptical springs were popular in certain desert race classes that contained specific rules only allowing for certain types of suspension and springs. It looks like the rule books evolved with technology and seem to allow coil overs on anything (save for certain stock classes that would have allowed 1/4 ellipticals anyway) which has made 1/4 elliptical springs virtually obsolete. Crawlers adopted it at a time when coil over shocks were not prevelant and supply was inconsistent to the recreational wheeler. That was a long time ago and much has changed. Coil overs are pretty much superior in every way which is why you see them everywhere and 1/4 elliptical springs nowhere. Both still rely on properly designed 3 or 4 link suspensions to work properly so, if you are going that far, might as well just go all the way and run coil overs. Or just run coil springs.....though companies like FOA make it hard to even justify that because of their low (comparatively) cost.
    Last edited by Stickybongsmoking; 01-25-2011 at 05:25 PM.
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  3. #3
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    I was thinking of doing this setup since I have all the parts for the 4 link and can easily switch from the 1/4 lip to coilovers when money permits (next winter prob). Spent this years budget on the 4 link stuff and I need tires way more than suspension.

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    Make some buckets and grab some junkyard coils?
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  5. #5
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    could use junkyard coils but how much flex would I really get out of them?

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    You change things more then I do oil changes!

    Did you go with the TMR full front/rear link kits?

    PS I have some coils you might be interested in...

  7. #7
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    Don`t you need different shocks for coils vs leafs?

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    No I didn`t buy the kit. I bought 1.25 inch trail gear creaper joints and 24` of 1.75" .5" wall DOM. The brackets and stuff I made with the plasma cutter and vertical mill. Some still need to be made, but have the steel.
    bought the DOM and ends off someone on here.

  9. #9
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    Depends on the coils and the shocks are the same. .5 wall, god damn
    Last edited by Curt's_97; 01-25-2011 at 06:29 PM.

  10. #10
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    Shocks are the same. hmm thought I read somewhere that if you used leaf ones with single rate coils then they would bottom out alot. If they are the same then that prob is the way to go, even spend the few extra bucks and get some lift coils from summit or something.

  11. #11
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    Before you spend any money tack some buckets up, throw some v6 zj/wj front coils in and adjust buckets from there. Probably get some for free.

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