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Rear Leaf And Shackle Bolt Torque Settings.

Discussion in 'The Garage' started by 4wheelin4Jesus, Feb 2, 2006.

  1. 4wheelin4Jesus

    4wheelin4Jesus 1/2 ton status

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    anybody know the torque settings for the rear leaf spring bolts, and the rear shackle bolts?
    I have a 1978 gmc jimmy.
    thanks
     
  2. ike

    ike Registered Member

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    Rear suspension torque spec

    Rear suspension ( leaf spring type)
    Spring front eye bolt 90 lbs
    Spring rear eye bolt 90 lbs
    Spring rear shackle 90 lbs

    LOL 90 lbs ... all

    This is out of a Haynes Manual Chev-GMC 76-87 Sub,Blaz,Jimm...
     
  3. cegusman

    cegusman 3/4 ton status

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    In chiltons its 40ft lbs. I have allways done this and never had a problem
     
  4. 79k20350

    79k20350 3/4 ton status

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    so does mine, and the piece of paper that came with my poly bushings

     
  5. ike

    ike Registered Member

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    Torque settings

    Funny its not the same . Anyway I was going to say from the start that a torque wrench with a strict setting isn't needed in this application...If you were installing heads or setting up a bearing pre load then yes... Its good to know though so you have a idea. Something you might want to do is get a new set of crimp or metal lock nuts...what ever you call them...If not then a drop of blue locktight on each then tight with a 1/2 ratchet Just don't go crazy and overtighten so the bracket bends and squeezes and crushes or breaks... ,,,.... Thats all just IMO hope it helps...
     
  6. cegusman

    cegusman 3/4 ton status

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    Yes blue lock tight can be your friend. But I have never had a spring bolt losen up when not using lock tight. You have to think the tighter the bolts are the harder the suspension will have to work correctly.
     

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