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  • Jack points...

    Does anyone else seem to have week unibody rail things?

    Mine fold over no matter what i do, and i have to hammer them back, it takes for ever.

    Is there some kind of rail i could slip over and tack weld on?

    Or is there a better alternative jacking point?

    Thanks ahead of time.

    Terrible idea putting those wheels on...

  • #2
    I use the center of the crossmembers.
    That is with a floor jack though.

    Perhaps you could carve a channel into a block of wood to
    fit the frame rail?
    imagination is a virtue

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    • #3
      Could try opening your FSM, there's a picture of all the "advised" jack points in there.

      Personally I only lift on either of the crossmembers, or diff.

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      • #4
        I concur.... I made the slitted block of wood adapters to jack the unibody pinch seam, but unless I only need 1 wheel off the ground - which is rare - I use the crossmembers

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        • #5
          The piece of wood like these guys mention for the frame rails works great.

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          • #6
            :shock: I prefer to box the craptacticular oem rails with 1/8" plate....making them so strong that I can lift anywhere I want on the rails without issues. Strong?..... I can place a floor jack between the tires on the rail on one side of the car and lift the entire one side of the car with no problems.
            *This does effectively firm up the chassis too!
            I am here to help...

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            • #7
              dan, can you make me some dinner plates? :P

              somehow my dishes are never that clean

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              • #8
                yeah, i am just tired of the rails being lame.

                Thanks guys, i will try dans idea if i can get everything straight.

                Terrible idea putting those wheels on...

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                • #9
                  WaZZ300 wrote: yeah, i am just tired of the rails being lame.
                  I'm lucky to own 2 Z31's with un-crushed rails (for the most part). 90% of them I see have been comppletely crushed flat in at least one spot. I have a nasty habit of looking under cars quite frequently...

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                  • #10
                    Jason84NA2T wrote:

                    Personally I only lift on either of the crossmembers, or diff.
                    Ditto
                    2008 BMW E92 335i 6MT

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                    • #11
                      My employer sells a nice hydraulic jack that works in the stock jacking point so you don't have to dick around with wood.
                      Just in case you're wondering, I'm Pylon_Boy


                      I'm moving out of the country. Buy my tools, cars, car parts, ect.
                      http://search.ebay.com/_W0QQsassZpylon_boyQQhtZ-1

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                      • #12
                        Yeah, I've never seen one without crushed rails. Planning on wedling in plates over the whole frame.
                        Drive


                        1975 Datsun 280Z
                        1988 300ZX (NAtoT soon)
                        2006 Kawasaki ZX6R

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                        • #13
                          that underbody is soooo clean i wish my interior was 1/2 as clean as the underbody
                          Stocker 87 na z31 and a slightly modded 90 240sx

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                          • #14
                            My rails were unfortuantely raped by the previous owner
                            1988 300zx Turbo, Shiro Edition #21

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                            • #15
                              FreeLanceBum wrote: Yeah, I've never seen one without crushed rails. Planning on wedling in plates over the whole frame.
                              Like this? As seen at: http://home.comcast.net/~gwmolitor/frame_repair.html

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