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Spring and shackle bolt sizes?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by outlaw612, Jul 1, 2002.

  1. outlaw612

    outlaw612 1/2 ton status

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    Im gonna be putting my lift on and want to get new bolts. Does anyone know what size and length for the front and rear springs and shackles?
     
  2. TwoCrowsDesign

    TwoCrowsDesign 1/2 ton status

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    I believe they're 7/16 from the factory on my 89. I got the ORD bushings and shackle kit and those are 1/2", just make sure that the sleeves in the bushings match the bolt diameter. FYI - The ORD bolts are drilled and fitted with grease zerks (sp?).

    John
     
  3. thatK30guy

    thatK30guy 1 ton status Premium Member

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    Very front spring bolts and all the rear spring bolts are 9/16" and the front spring shackle bolts are 7/16" from the factory.
     
  4. SkulzNBonz

    SkulzNBonz 1/2 ton status

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    Yep, those are the right sizes. The 9/16" bolts on the front are 5" long, and the back are 4 1/2" long. They are grade 8, and use Nylok nuts. I had to buy mine from a fastener supply company.

    John
     

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