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Driveshaft Mods Required for 6" or 8" lift on a Suburban

Discussion in '1936-Present Suburban' started by IGOR, May 22, 2003.

  1. IGOR

    IGOR 1/2 ton status Premium Member

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    Driveshaft Mods Required for 6\" or 8\" lift on a Suburban

    Just curious...

    Would any driveshaft mods be required on either a 6" or 8" lift for a 73-91 style Sub?

    Thanks...
     
  2. Muddytazz

    Muddytazz 1 ton status

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    Re: Driveshaft Mods Required for 6\" or 8\" lift on a Suburban

    8" yes, 6" possibly, i'm running 5" front and 7" rear and my rear is fine (tapered blocks) my front has a slight vib from the angle of the shaft, but when I put the 3/4ton D44 under it, i'm going to put in a degree block to help.
     
  3. SUBFAN

    SUBFAN 1/2 ton status

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    Re: Driveshaft Mods Required for 6\" or 8\" lift on a Suburban

    I would think they would need lengthened, my 4" lift really gave the yoke/slip joint a good pull in the wrong direction.
     
  4. BurbLover

    BurbLover 1/2 ton status

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    Re: Driveshaft Mods Required for 6\" or 8\" lift on a Suburban

    8" = yes

    As far as 6", it all depends on what yer gonna do. If you'll never flex it, it won't need to be lengthened. If it only see's pavement (aka mall cruiser), then no it won't. However, If you actually like to hit some trails for fun, I'd strongly recommend it be lengthened. Finding out on the trail that it should've been lengthened is a bad time to find out. /forums/images/graemlins/grin.gif

    /forums/images/graemlins/burb.gif /forums/images/graemlins/thumb.gif
     
  5. BurbinOR

    BurbinOR 3/4 ton status

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    Re: Driveshaft Mods Required for 6\" or 8\" lift on a Suburban

    Did a 6" lift on the Burb and it did not need to be lengthened............however, I did not run it up a ramp and test the flex since I will be going nuts with this rig but as said above, depends on your use.
     

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