Why is my YJ all over the road

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    Why is my YJ all over the road

    I bought a built YJ last year. It's linked with Fox coilovers and air bumps. I took it out on the test drive and it was all over the place at anything over 25mph. The heims in the steering were loose so I replaced all those. Still nearly uncontrollable.

    It has a full PSC hydro assist system. Front axle is a spidertrax. Steering and track bar angles look good. All links are johnny joints. Has an antirock swaybar in the front.

    Where should I start looking? Is that the nature of the beast with a linked rig?
    Bunch of old crap.

    #2
    Caster

    Comment


      #3
      Originally posted by YotaAtieToo View Post
      Caster
      That could definitely be. I really should get it aligned.
      Bunch of old crap.

      Comment


        #4
        Just check the caster and toe. Do like 1/8" toe in and ~8* caster, maybe more.

        Best way I've learned to do toe is on jack stands. Mark each tire in one spot and roll it 180* each time you check it. This gets rid of most of the variables.

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          #5
          Angles looking good and are good are 2 completely different things.

          Pics help
          Whats your caster as stated above.
          :ogre:

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            #6
            I also say caster and toe. Those 2 will make a rig miserable to drive if they aren't correct.

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              #7
              There are more variables than there are steering parts.

              Youve given almost zero information to try to work with.

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                #8
                Sounds like a loose nut behind the wheel

                Originally posted by jsawduste View Post
                There are more variables than there are steering parts.

                Youve given almost zero information to try to work with.
                Pretty much. All the high dollar parts mean nothing. Post some pics of the jalopy.

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                  #9
                  I will as soon as I get back home.
                  Bunch of old crap.

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                    #10
                    Old doesn’t mean bad.

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                      #11
                      I’ll add caster as well, also a mismatched ram/orbital could make things sketchy too.

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                        #12
                        Couple pics of the front end.
                        Attached Files
                        Bunch of old crap.

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                          #13
                          Angle meter across the Allen heads on the steering knuckle show about 7 degrees. Can one infer caster from that?
                          Attached Files
                          Bunch of old crap.

                          Comment


                            #14
                            Depends on the location of the lower ball joint from there.

                            Click image for larger version
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                            The shithead formerly known as cn'tafordit & Brocko2

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                              #15
                              Remove front driveline so you can play with caster without worrying about pinion angle. add caster then drive, note changes. add caster, drive until it handles properly. if it doesn't correct the problem then you will have at least eliminated caster as a factor. If it fixes it then you will know that you have to cut and turn the inner Cee's to get the caster with proper pinion angle.

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