Torque specs for shock bolts

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by LoneRanger, Sep 8, 2019.

  1. LoneRanger

    LoneRanger Road Train Member

    3,695
    9,605
    Jun 3, 2018
    0
    anyone know? 300Ft-Lb? Ok or more is needed.

    Also do you re-torque after few hundred miles?
     
    Last edited: Sep 8, 2019
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. PE_T

    PE_T Road Train Member

    I used 100 ft lbs. I also wanted to know the answer but was seeing different answers. I decided to use my torque wrench the opposite way to determine how much torque it required to remove the bolts. My notes are showing that all of my bolts needed 90-95 ft lbs to remove them. I still had the original shocks in my truck. I do remember re-torquing mine, but it may not be necessary.

    Extra:

    My APU mount bolts are longer and the same bolt material and head size (1-1/8”) as my shocks. The Thermo King APU manual says 100 ft lbs for these mount bolts. Now, shocks go through more of a beating, so I suppose they can be okay with higher than 100.
     
    Last edited: Sep 8, 2019
    shatteredsquare and LoneRanger Thank this.
  4. Goodysnap

    Goodysnap Road Train Member

    3,773
    9,199
    Jul 12, 2017
    0
    300 a bit high. What bolt size? 5/8 = 185 ft lbs. Or 1/2 inch impact tight does the trick. New lock/stover nuts and no need to retorgue.
     
    pushbroom, PE_T and LoneRanger Thank this.
  5. LoneRanger

    LoneRanger Road Train Member

    3,695
    9,605
    Jun 3, 2018
    0
    Bolt size is 1 1/8th I tightened best I could with hand tools, going to get a torque wrench and finish it off.
     
  6. Goodysnap

    Goodysnap Road Train Member

    3,773
    9,199
    Jul 12, 2017
    0
    1-1/8 socket is 3/4 bolt. And 250-300 wont hurt a thing. Hard to overtorque that one.
     
    shatteredsquare and LoneRanger Thank this.
  7. PE_T

    PE_T Road Train Member

    Do not get a torque wrench from Harbor Freight. Maybe just their smallest one (which I rarely use). These are delicate tools, so you want a better quality brand.
     
    LoneRanger Thanks this.
  8. LoneRanger

    LoneRanger Road Train Member

    3,695
    9,605
    Jun 3, 2018
    0
    Minimum standard is husky, since it’s lifetime warranty at any Home Depot, would like snap on but rates these days make me ball on a budget.
     
    PE_T Thanks this.
  9. PE_T

    PE_T Road Train Member

    Snap-on are overrated and overpriced. If anyone is to really benefit from them is an actual full-time mechanic or a mechanic shop.
     
  10. LoneRanger

    LoneRanger Road Train Member

    3,695
    9,605
    Jun 3, 2018
    0
    Yup I worked as one long time ago, I know it’s over rated and over priced but still quality.

    Some habits hard to break. :)
     
    starmac and PE_T Thank this.
  11. spsauerland

    spsauerland Road Train Member

    4,296
    10,891
    May 31, 2010
    West Harrison, In
    0
    Snap-on torque wrenches are made by CDI, which I believe is now owned by Snap-on. Hard to beat them for accuracy. You can find CDI on Amazon.
     
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.