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front driveshaft length and front lifting Q

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by R72K5, Sep 27, 2002.

  1. R72K5

    R72K5 Banned

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    ive got a line on a 30 3/16" long(overall)- when completely collapsed- front shaft, and my measurement on the truck from t case mounting output flange up to the axle yoke is 30 3/4"

    that give me 9/16" of an inch

    i assume that is not enough, that i either need to lift the truck or do something else ?

    how much will lifting truck about 2" help, if any ?
    what are my options?

    thanks
     
  2. R72K5

    R72K5 Banned

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  3. m j

    m j 1/2 ton status

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    move front axle forward
    buy a shaft that is correct length
    shorten that shaft
     
  4. R72K5

    R72K5 Banned

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    was afraid of that, trying to find out for sure whether motion of front suspension binding down on street use could be enough to bottom out driveshaft when is only 9/16" to go before its bottomed out,

    do front suspension geometry changes- while street driving- actually cause that much length changes to front shaft anyways ?

    thanks
     
  5. m j

    m j 1/2 ton status

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    lift springs move enough to pound the shackle into the frame on compression
    it would suck to knock the transfercase off the back of the tranny
     

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