1. Outlandish_James

    Outlandish_James Test Drive

    Messages:
    5
    Location:
    Spokane, Washington
    Hello I am as new as it gets and I have a simple question. Can somebody explain to me spring under axle and spring over axle? I understand my leaf springs are currently fixed under my axle, is it cope to put them on top of my axle to get some rear clearance??? Hazing welcome haha thank you
     
  2. Prime

    Prime Some Kind of In Charge? Admin

    Messages:
    34,691
    Location:
    Denver-ish
    Welcome to XN!

    So basically, SUA (Spring Under Axle) is the configuration of the X. The leaf spring is mounted under the axle tube. SOA (spring over axle) is more common in pickup trucks and taller vehicles.

    Now, if you swap an X from SUA to SOA you gain 5.5 to 6" of lift in the rear. With no other modifications. That's problematic. Because the 1st gen X can only be lifted 3" in the front because of the design of the IFS. So the ONLY time that an SOA swap is warranted on a 1st gen is if you SAS the front. Essentially remove the independent front axle and swap it for a solid axle. That can net 4-6" of lift depending on how you put it together.

    Any other questions, feel free to ask. It's why we're here.
     
  3. Outlandish_James

    Outlandish_James Test Drive

    Messages:
    5
    Location:
    Spokane, Washington
    Thank you! I’ll keep the original configuration on a count, not looking for that much lift right now. I’m just looking to clear 31”-32” tires.
     
  4. Bushnut

    Bushnut Bought an X

    Messages:
    72
    Location:
    winnipeg
    31s should fit fine with no modifications. However if things are looking tight, it might be on account that your springs are almost 20 years old and are sagged out. There are some options, 1: replace everything with new=very $$$ 2: add a leaf upgrade, and or PML. Or both. 3: have the springs re-arched at your local spring shop.
     
  5. Outlandish_James

    Outlandish_James Test Drive

    Messages:
    5
    Location:
    Spokane, Washington
    Add a leaf I’ve done that before and for the front adjust the torsion bars up a little? My front end seems uncommonly low
     
  6. Prime

    Prime Some Kind of In Charge? Admin

    Messages:
    34,691
    Location:
    Denver-ish
    Yes.
     
  7. Outlandish_James

    Outlandish_James Test Drive

    Messages:
    5
    Location:
    Spokane, Washington
    Thank you for the guidance fellas!
     

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