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Lug Nut Torgue

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by wayne, Mar 7, 2002.

  1. wayne

    wayne 3/4 ton status

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    After seeing a bunch of post lately about wheel studs breaking and nuts comming loose and wheels flying off I was wondering if people actually know what the torque specs are. Looking for specs on all axles, 10 bolt up to 14ff's.
     
  2. Stomp

    Stomp 1/2 ton status

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    most lugnut torque is around 55-70 pounds
     
  3. BurbinOR

    BurbinOR 3/4 ton status

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    4WPW told me 120 lb/ft on my 9/16" studs on the 14B/D60 with AE 589 wheels................
     
  4. Greg72

    Greg72 "Might As Well..." Staff Member Super Moderator

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    Here's a set of specs straight out of my 1972 Owner's manual

    Series K10.....................7/16" Bolts (6)......55-75 Lb/Ft
    Series C.........................1/2" Bolts (5).......65-90 Lb/Ft
    Series C, P20, 30............9/16" Bolts (8)......90-120 Lb/Ft
    Series C30 (HD Wheels).....5/8" Bolts (10)...200-250 Lb/Ft

    That should get your list started.....! /forums/images/icons/smile.gif
     
  5. wayne

    wayne 3/4 ton status

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    Here is what I just came up with:

    6 lug 1/2 and 7/16"........................88 Ft-lbs
    8 lug 9/16".....................................118 Ft-lbs
     

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